22 Fixed Attenuator Manufacturers in 2024
This section provides an overview for fixed attenuators as well as their applications and principles. Also, please take a look at the list of 22 fixed attenuator manufacturers and their company rankings. Here are the top-ranked fixed attenuator companies as of November, 2024: 1.JFW Industries Inc., 2.Shenzhen Tianruitong Microwave Devices Co., Ltd, 3.ROHO Connector Limited.
Table of Contents
Categories Related to Fixed Attenuators
What Is a Fixed Attenuator?
A fixed attenuator is a circuit or device designed to reduce the strength of an incoming signal to a specified level, typically measured in decibels (dB).
The most common type of attenuator features male and female BNC or F-type connectors on both ends, with the attenuator body sandwiched between the connectors. These attenuators are compact and roughly the same size as the connectors in terms of thickness.
Some types of fixed attenuators allow for switching between various attenuation levels.
Fixed attenuators are used not only for electrical signals but also for measurements involving physical quantities, such as light.
Uses of Fixed Attenuators
Fixed attenuators serve several purposes, including adjusting the output signal level in relation to the input signal, achieving impedance matching between the receiving and transmitting sides to obtain the desired output, and preventing unwanted reflections in a circuit. They are also used to minimize the generation of unwanted reflected waves in a circuit.
While fixed attenuators reduce signal strength, boosters, which are circuits or devices that amplify input signals to the desired level, are employed when input signal levels are too low. For instance, boosters are used in areas with weak reception to enhance the performance of TVs and radios by amplifying incoming signals.
Principles of Fixed Attenuators
Fixed attenuators consist of resistors arranged in a T-shape or π-shape configuration.
The level of attenuation can be precisely controlled by adjusting the resistor values and the number of stages in the T- or π-shaped circuit.
Fixed attenuators are predominantly used in audio equipment and various broadcasting equipment, such as TV broadcasting.
In audio equipment, user-defined effects are added to the input audio signal within the internal circuitry before it is transmitted to the loudspeakers. Many of these effects have independent circuit configurations. If a circuit enhances low-frequency characteristics, the signal is passed from the output to the next stage of the circuit.
In such cases, it is crucial to maintain the output signal level within an optimal range. If the output signal level is expected to be too high, a fixed attenuator should be introduced into the circuit.
Excessive signal levels sent to the loudspeaker can result in distorted audio quality. Conversely, if the circuit configuration suggests that the output signal level will be too low, an amplifier circuit (booster) should be incorporated.
When receiving broadcast signals, like TV and radio, there are instances where the input signal level is exceptionally high. For example, signals may be received in close proximity to the broadcast transmitter. In such scenarios, a fixed attenuator should be placed before the antenna input terminal to reduce the incoming signal level to the desired level. Failure to do so may result in unwanted noise contaminating the reproduced video or audio.
List of 22 Fixed Attenuator Manufacturers
*Including some distributors, etc.
Sort by Features
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- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- China
- Germany
- India
- Israel
- Japan
- Switzerland
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Spectrum Control
Fixed Attenuators
Manufacturer Overview
Spectrum Control is based in Pennsylvania, USA, and is a manufacturer of microwave and radio frequency (RF) subsystems and components for the defense industry that was originally established in 1963 before its acquisition by API Technologies in 2011. The company produces conditioning and distribution products such as RF signal couplers, digital blocks such as RF signal modulators, and power distribution accessories such as inverters. It also offers EMI protection products and integrated microwave assemblies tailored to customer specifications. The company’s products are used in the defense and aerospace industries, with additional applications in military-grade secure systems.
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L-com
RF Fixed Attenuators
Manufacturer Overview
L-com was founded in 1982 and is headquartered in North Andover, Massachusetts. The company serves many industries including electronics, medical, industrial automation, military, and telecommunications a manufacturer and servicer of wired and wireless communications products. The company’s custom product capabilities include customized cable assemblies, WiFi antennas, adapters, and surge protectors. Through its parent company, Infinite Electronics, the company offers a broad range of RF components and assemblies to over 100,000 global customers.
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Analog Devices, Inc.
Fixed Attenuators
Manufacturer Overview
Incorporated in 1965, Analog Devices, Inc. designs, manufactures, tests, and markets integrated circuits (ICs), software, and subsystems that leverage analog, mixed-signal, and digital signal processing technologies. The company provides data converter products, power management and reference products for power conversion, driver monitoring, sequencing, and energy management applications in the automotive, communications, industrial, and high-end consumer markets. In addition, the company provides digital signal processing and system products for high-speed numeric calculations. It serves clients in the industrial, automotive, consumer, instrumentation, aerospace, and communications markets.
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State of the Art, Inc.
Fixed Attenuators
Manufacturer Overview
State of the Art, Inc. (SOTA) is an American manufacturer of various film resistive components and products originally established as a consulting business in 1969 before expanding to manufacturing operations in 1972. Based in State College, Pennsylvania, the company produces chip resistors on circuit boards or hybrid substrates, integrative resistor networks, attenuators, and terminators. These are crucial in industrial processes that involve electrical circuits, current control, voltage regulation, and signal processing. SOTA products are used by clients in various industries, including in the defense, biomedical, telecommunications, and aerospace sectors.
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Mini-Circuits
RF Attenuators
Company Overview
Mini-Circuits, founded in 1968 and headquartered in Brooklyn, New York, is a designer, manufacturer, and distributor of RF and microwave components and integrated assemblies. The company’s range of products includes adapters, amplifiers, attenuators, cables, and frequency multipliers. Mini-Circuits' products are used to provide essential components and solutions for RF and microwave communication, signal processing, and testing across industries such as telecommunications, aerospace, defense, research, and manufacturing. Their offerings enable efficient signal transmission and manipulation in diverse applications where RF and microwave technologies play a role. The company also holds ISO 9001, AS 9100, and ISO 14001 certifications.
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JFW Industries Inc.
Fixed Attenuators
Company Overview
JFW Industries Inc. designs and manufactures passive RF components and application-specific test systems. Established in 1979, the company is headquartered in Indianapolis, Indiana, USA. The company's main activities encompass manufacturing a wide range of RF and microwave components, including attenuators, switches, power dividers, and custom RF solutions. These components are essential for various industries like telecommunications, aerospace, and defense, enabling seamless communication and signal processing. JFW Industries Inc. also offers services such as custom design and engineering solutions for different RF challenges.
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Avnet, Inc.
Fixed Attenuators
Distributor Overview
Avnet, Inc. is an American distributor of electronic components and IT software originally founded in 1921 before its incorporation in 1961. Headquartered in Phoenix, Arizona, the company offers various electronic components including analog switches, microcontrollers, and circuit protectors, as well as IT solutions such as cloud computing and data analytics software. These are used by their clients in the automotive, transportation, security, and communication sectors. Avnet, Inc. operates in over 140 countries across North America, Asia, and Europe, and has several subsidiaries including Hackster.io, Dragon Innovation, and EBV Elektronik.
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HUBER+SUHNER
Fixed attenuator
Manufacturer Overview
HUBER+SUHNER, a company founded in 1864 and headquartered in Herisau, Switzerland, is a manufacturer and supplier of connectivity solutions. The company specializes in providing products for the communication, transportation, and industrial markets. Their extensive range includes fiber optics, radio frequency, and low-frequency cables, connectors, and antennas. Their products are used in telecommunications, data centers, transportation systems, aerospace, and defense industries. The company also provides customer support and service to meet the diverse needs of its clients.
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SSB-Electronic GmbH
Attenuators
Manufacturer Overview
SSB Electronic GmbH, based in Lzeň, Czech Republic, is a manufacturer and partner trader of SDR (software-defined radio) and radio frequency equipment and systems. The company's main products include various coaxial cables, SDR receivers, and radio electronics, such as remote power splitters, sequencers, and preamplifiers. It also offers the custom design and production of radio frequency equipment and systems, which are used in weather satellite systems and direction-finding systems. The company's services include cable assembly, testing and measuring procedures, and project management.
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SEIKOH GIKEN Co., Ltd.
Attenuator
Manufacturer Overview
SEIKOH GIKEN Co., Ltd., a company founded on June 7, 1972, and headquartered in Chiba, Japan, is a manufacturer and supplier of optical components and equipment. The company specializes in the development and production of fiber optic connectors, fusion splicers, and related products for the telecommunications and data communication industries. Their products are used for fiber optic connections in various applications, including telecommunication networks, data centers, and optical sensing systems. The company also offers customer services including prompt and responsive communication to address inquiries and technical assistance.
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Shenzhen Tianruitong Microwave Devices Co., Ltd
30W N Type Fixed Attenuator
Manufacturer Overview
Shenzhen Tianruitong Microwave Devices Co., Ltd (also known as Shenzhen BECENRF Communication Technology Co., Ltd) is a Chinese manufacturer based in Shenzhen, Guangdong, specializing in radio frequency (RF) and microwave (MV) components. The company’s RF and MW products include a selection of attenuators, typically installed to reduce signal strength, step attenuators that maintain waveform integrity while reducing signal power, and connectors, primarily used for signal transmission. The company also offers dummy loads for simulating electrical loads, direct current (DC) blocks to prevent DC flow through RF circuits, as well as surge arrestors to safeguard radio and antenna installations from power surges.
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Synergy Telecom Pvt. Ltd.
Fixed Attenuator
Manufacturer Overview
Synergy Telecom Pvt. Ltd. was established in 1994 as a manufacturer and supplier of products and solutions for RF communication located in Delhi, India. The company makes various RF Connectors such as Audio Push On Connectors, High-Temperature Connectors, Miniature Coaxial Connectors, and more along with cables, microwave components, antennas, and related tools and accessories that have applications in electric and telecommunication systems. They serve the Railways, public sectors, utilities in aviation, research institutes, military, and more.
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ChengDu Leader Microwave Technology Co.,Ltd
Fixed Coaxial DC-6GHz 5W RF Power Attenuator
Manufacturer Overview
Chengdu Leader Microwave Technology Co., Ltd., established in 2013 and based in Chengdu, Sichuan, is a Chinese manufacturer of various radio frequency (RF) and microwave (MV) passive components. The company provides RF and MV directional couplers, filters, and power dividers. RF and MV attenuators, circulators, and isolators are also available. The company further supplies RF combiners, duplexers, and point of interface (POI) components. These products find applications in various sectors, including measurement and testing systems, military and defense equipment, RF and radar systems, as well as mobile communication and satellite systems, comprising the third, fourth, and fifth generations (3G, 4G, and 5G).
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Orbray Co., Ltd.
Fixed Attenuators
Manufacturer Overview
Orbray was originally founded in 1939 in Japan. Orbray serves the automotive, medical, fashion, information communication, audio, and robotics industries. Orbray develops a variety of products including small motors, fiber optics components, and precision jewelry tools. Applications for Orbray’s products include small robots, diaphragm pumps, inner wall metrology systems, and semiconductors.
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Shenzhen OPTICO Communication Co.,Ltd
FC APC Fixed Attenuator
Manufacturer Overview
Shenzhen OPTICO Communication Co., Ltd was established in April 2008, in China as a manufacturer of optical products. The company has a wide range of optical active and passive products which includes Polarization Maintaining 5G Series, Patch Cords that are available in various transmission modes, optical cable types, and connector types. There are also Fiber pigtails, jumpers, adapters, connectors, and cables along with other related products such as splitters, terminal boxes, Optical chips and etc. which have extensive use in the 4G/5G, Data Centers, Telecom, and Cloud Computing industry.
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ZTS Technologies Co., Ltd
RF Fixed Attenuator
Manufacturer Overview
ZTS Technologies Co. Ltd., established in 2006 and headquartered in Shenzhen, China, is a manufacturer of passive RF/microwave components and related systems. The company specializes in coaxial attenuators, terminations, and DC blocks, catering to commercial and military applications. It also offers RF switches and RF passive components, ensuring solutions for diverse RF applications. Its cable assemblies from 6GHz to 110GHz ensure market demands and meet high-cost efficiency and short delivery times. The company also offers microwave and mm-wave devices, modules, and systems, such as frequency sources, amplifiers, and isolators/circulators, that are compliant with RoHS standards.
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Danyang Teruilai Electronics Co.,Ltd
RF Fixed Attenuators
Manufacturer Overview
Danyang Teruilai Electronics Co. Ltd. (TRL), founded in 2008 and headquartered in Jiangsu Province, China, is a manufacturer and supplier of radio frequency connectors and cable assemblies. The company offers a range of interconnect solutions for applications in the navigation, 5G, and radar detection industries. Its products include micro-RF coaxial connectors, RF coaxial terminations, and RF fixed attenuators. Its claimed clients include Rohde & Schwarz in Germany, RFI in Australia, and Mini Circuit in the United States.
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ROHO Connector Limited
2W SMA Fixed Attenuator Male to Female RF Coaxial DC-6GHz 50ohm 1-30dB Gold
Manufacturer Overview
ROHO Connector Limited is a Chinese manufacturer and supplier based in Shenzhen, Guangdong, providing radio frequency (RF) connectivity solutions. The company’s product lineup includes RF coaxial connectors, utilized to link cables with various devices, as well as RF cable assemblies, the high-frequency cables installed for seamless, distortion-free transmissions. Microwave motion sensors are also part of the offerings, along with other related products, including a range of RF adaptors, RF load terminators, and RF power dividers. The company further offers a selection of RF antennas that function as interfaces between radio waves, as well as fixed, switched, and variable RF attenuators.
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Smiths Interconnect Canada Inc.
Fixed Attenuators - High Power
Manufacturer Overview
Smiths Interconnect Canada Inc., headquartered in London, England, is a manufacturer of connectivity solutions. The company provides technically differentiated electronic components, subsystems, optical and radio frequency products that connect, protect and control critical applications in mainly energy, defence, aerospace and industrial market segments. Its product portfolio includes connectors, board test fixture probes and defence antenna systems. It has 21 sales, R&D and manufacturing locations in 12 countries, including Canada, US and UK. The company complies with multiple quality, safety and environmental standards including ISO, RoHS and REACH.
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Ophir Optronics Solutions Ltd
360-2600 nm Variable Laser Beam Attenuator
Company Overview
Ophir Optronics Solutions Ltd, since 1976, is a manufacturer and distributor of infrared & laser optics, laser beam analysis, and laser power and energy measurement equipment and components headquartered in Wilmington, Massachusetts. They offer various laser power and energy measurement equipment and components including laser power sensors, laser energy sensors, laser power & energy meters, and LED measurement equipment. Their IR optics include long-range IR, lightweight & foldIR zoom, and LWIR, MWIR & SWIR lenses. The company, a brand within MKS Instruments Photonics Solutions Division, offers its products for scientific research, defense, semiconductor manufacturing, industrial, and life & health sciences applications.
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Miwave Techno Ventures
Fixed Attenuator
Company Overview
Miwave Techno Ventures, founded in 2009 and headquartered in Indore, Madhya Pradesh, India, is a manufacturer and supplier providing microwave and waveguide products. The company’s extensive product range includes microwave antennas, microwave test bench devices, and waveguide components, all characterized by their corrosion resistance, durability, and ease of maintenance. These products serve diverse applications within the realm of microwave technology, facilitating precise measurements and efficient signal control in industries such as research and telecommunications.
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Tocone
Attenuators
Company Overview
Tocone Co. Ltd. is an ISO 14001:2015-certified manufacturer and distributor of radio frequency (RF) products that was established in 1947 in Tokyo, Japan. The company offers coaxial RF connectors in a range of connector types and sizes, quick adapters for on-the-go measurement operations, and dummy load devices for terminating the end of a transmission line under test. The company’s products are used mainly by its clients in architectural engineering, telecommunication, and audio editing.
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Fixed Attenuator Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | JFW Industries Inc. |
7.4%
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| 2 | Shenzhen Tianruitong Microwave Devices Co., Ltd |
5.9%
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| 3 | ROHO Connector Limited |
5.9%
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| 4 | Smiths Interconnect Canada Inc. |
5.9%
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| 5 | SEIKOH GIKEN Co., Ltd. |
5.9%
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| 6 | Analog Devices, Inc. |
5.9%
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| 7 | SSB-Electronic GmbH |
5.1%
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| 8 | Spectrum Control |
4.4%
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| 9 | ChengDu Leader Microwave Technology Co.,Ltd |
4.4%
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| 10 | Miwave Techno Ventures |
4.4%
|
Derivation Method
The ranking is calculated based on the click share within the fixed attenuator page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- Avnet, Inc.: 15,300
- Orbray Co., Ltd.: 2,000
- SEIKOH GIKEN Co., Ltd.: 941
Newly Established Company
- Miwave Techno Ventures: 2009 (15 years ago)
- Shenzhen OPTICO Communication Co.,Ltd: 2008 (16 years ago)
- Synergy Telecom Pvt. Ltd.: 2004 (20 years ago)
Company with a History
- Avnet, Inc.: 1921 (103 years ago)
- State of the Art, Inc.: 1969 (55 years ago)
- HUBER+SUHNER: 1969 (55 years ago)
Fixed Attenuator Manufacturers in United States
*Including some distributors, etc.
- Spectrum Control
- L-com
- Analog Devices, Inc.
- State of the Art, Inc.
- Mini-Circuits
- JFW Industries Inc.
- Avnet, Inc.
Global Distribution of Fixed Attenuator Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
United States of America
|
7 | 41.2% |
China
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3 | 17.6% |
Japan
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2 | 11.8% |
India
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2 | 11.8% |
Switzerland
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1 | 5.9% |
Germany
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1 | 5.9% |
Israel
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1 | 5.9% |
List of Fixed Attenuator Products
9 products are listed.
αTM Wave (Alpha Tatiem Wave)
Fixed attenuator Large Power Large Power (for 100W, 200W, 300W)
30+ people viewing
■ Characteristics ・ The αTM -Wave manufactures and sells a fixed attench for large power (for 100W, 200W, 300W). ・ We also provide a fixed attenc...
αTM Wave (Alpha Tatiem Wave)
High quality fixed attenuator DC ~ 3GHz/4GHz
20+ people viewing
■ High quality fixed attenuator ・ DC ~ 3GHz/4GHz ・ 10W, 20W, 50W, 100W, 200W, 300W ・ We have been well received for use for applications such as...
