Russian

MeiXun (Wuxi) Communication Technology Co.,Ltd

About Us

Db design (Shanghai)/MEIXUN (Wuxi) is a quality manufacturer of RF/Microwave components. Company established in Shanghai in 2012. Due to the enlargement of production line, we moved to Wuxi city in 2019.

Company Positioning: Deeply cultivate the microwave device field and strive to be a leader.

Market Policy: Enhance the brand value of customers with high-quality products and services.

Market Strategy: Same quality + better price + better service + independent controllability.

Learn more +

  • 30%

    R & D Design Team

  • 10%

    Management Team

  • 50%

    Production Team

  • 10%

    Marketing Team

Wuxi Product Center
Shanghai Sales Center
Qingdao R & D Center
Xi'an Office
Chengdu Office

High-tech Enterprise, Feifeng Talent

Technical Background

Chief Engineer Wang graduated with a master's degree in high-power microwave from the Institute of Electronics, University of Chinese Academy of Sciences. In the same year, he joined CETC 40/41 for work and study. He has been committed to the design and development of microwave switches for a long time. He has applied for 27 patents as the first inventor in the microwave switch field, with 6 authorized invention patents and 14 utility model patents. The products he developed cover various application platforms such as civilian testing, vehicle-mounted, shipborne, airborne, and missile-borne.

Quality Control

Raw Material Control

Ensure the reliable quality of materials used inside the devices.

Learn more +

Component Control

Prevent unqualified components from entering the production line.

Learn more +

Production Line Control

• Fixed personnel, fixed positions + full production process traceability.
• Self-inspection on the production line + full-time inspection.
• Periodic inspection + outgoing inspection to ensure the reliable quality of materials used inside the devices.

Learn more +

Strict Inspection

Intermodulation test, microwave test, life test, stability test, coating inspection, high-temperature aging, thermal shock.

Learn more +

Product Service Center

Coaxial Switches

● Wide frequency range, up to 67GHz.

● Long service life and high transmission power.

● Low standing wave ratio, high isolation, low insertion loss, repeatability ≤ 0.05dB.

● Rich varieties, including SPDT, DPDT, SP4T, SP6T, SP10T, etc.

Learn more +

Equalizers

The microwave equalizer series products developed and produced by our company are manufactured using advanced microelectronic assembly processes. Our company has developed this series of products to address the problem that the large difference in gain (insertion loss) between the high and low ends within the frequency band in the design and debugging of broadband microwave systems reduces the dynamic range of the system.

Digital/ Voltage-controlled Attenuators

Digital Attenuator:

A circuit that realizes signal attenuation by adjusting the signal level. Its working principle can be simply divided into two parts: a digital controller and an attenuator.

Voltage-controlled Attenuator:

A two-port network that adjusts the signal amplitude between the input and output ports by controlling the DC bias. It is widely used in RF and microwave systems. Its applications include gain control after LNA (Low Noise Amplifier) or PA (Power Amplifier), amplitude modulators, amplitude stabilization circuits in oscillators, automatic gain control systems, etc.

Digital/ Voltage-controlled Phase Shifters

RF phase shifters are important devices in RF and microwave systems. They are used to control the relative phase of each element in phased array antennas of radars, directionally controllable communication links, and cancellation loops of high-linearity amplifiers.

Mixers/ Frequency Multipliers/ Frequency Dividers

Low Noise Amplifier

Low Noise Amplifier (LNA) is an amplifier with a very low noise figure. It is used in circuits to amplify weak signals and minimize the noise introduced by the amplifier as much as possible.

The main functions of the low noise amplifier are to improve signal quality, extend communication distance, and improve system sensitivity.

Power Amplifiers

Power Amplifiers (PA) are electronic amplifiers specially designed to amplify the power of RF or microwave signals so that the signals can be effectively radiated through antennas.

Driver Amplifiers

Driver amplifiers usually have high gain and high output power. A driver amplifier is a circuit used to enhance the output signal. In practical applications, driver amplifiers are mainly used in situations where the signal amplitude and capability need to be enhanced.

Waveguide Switches

● Wide frequency band, with a maximum operating frequency of 110GHz.

● DPDT switch, which can be used as SPDT.

● Frequency coverage: 5.8GHz - 110GHz.

● Low standing wave: ≤ 1.2@(75GHz - 110GHz).

● High isolation: ≥ 70dB@(75GHz - 110GHz).

● Ultra-small size.

Power Dividers

● Small size and high reliability.

● Good amplitude and phase balance.

● Frequency coverage: DC - 67GHz broadband.

● Series products with small size, compact structure, wide frequency band, high amplitude balance and phase balance indicators.

● Widely used in military, aerospace, communication and other fields for broadband signal power division, synthesis, power calibration, power monitoring and other occasions.

Directional Couplers

● Wide frequency band, high directivity, low loss.

● Can withstand a maximum power of 1000W.

● Single directivity, bi-directionality, high-power type, bridge type.

Waveguide-Coaxial Adapters

● Rich in specifications and varieties.

● Small standing wave ratio.

● Can be applied to the conversion of interfaces of measurement and testing equipment to improve testing flexibility.

Coaxial Adapters

● Rich in varieties and diverse in interface forms.

● Wide frequency band range, small standing wave ratio.

● Good repeatability.

Coaxial Loads/ Coaxial Terminations

● High reliability and good repeatability.

● Can withstand a maximum power of 100W.

● Can be designed and produced according to customer requirements.

Attenuator

● The highest frequency can reach 67GHz, and the maximum power it can withstand is 100W.

● Small size and long service life.

● Wide frequency band, small standing wave, high attenuation accuracy.

Miniature Switch Matrix

● Miniaturized.

● Cost-effective.

● Easy to operate.

● Touch screen interface design.

● Provide remote control interfaces and commands.

New Product Recommendations

Learn more +

Pin Switches

Solid-state RF Switches:

Operated by solid-state devices, such as PIN diodes, GaAs FETs, high-speed silicon diodes or hybrid circuits, etc., used to switch high-frequency signals. From single-pole single-throw to single-pole sixteen-throw that can convert a single input into 16 different output states, or more throw configurations. The transfer switch is a double-pole double-throw switch. Such switches have four ports and two possible switch states, enabling the load to be switched between two sources. The main electrical parameters affecting RF switches include isolation, insertion loss, switching time and power handling capacity.

Detectors

They have excellent performance such as small size, high sensitivity, fast response speed, good frequency response and wide operating frequency band. Coaxial detectors are suitable for power detection in various military or civilian electronic devices such as communications, radars, electronic countermeasures, navigation, microwave measurements, amplitude stabilization of signal sources, and sweep measurements of transmission and reflection.

Bias Tee

A biaser is mainly used to inject DC current or voltage into an RF circuit without affecting the RF signal passing through the main transmission path. The DC port of the biaser consists of a feed inductor, which is used to add a DC bias and prevent the AC signal at the RF port from leaking to the power supply system. Under ideal conditions, the DC end will not have any impact on the RF end signal; the RF port consists of a blocking capacitor, which is used to input the RF signal and can also block the DC voltage at the bias port. Through this design, a single RF cable is used to simultaneously transmit DC and RF signals to a remote end.

DC Blockers

A DC blocker is a coaxial adapter that can block DC signals and allow RF signals to pass through. It uses capacitors to block direct current and is used to protect sensitive RF components from the influence of direct current.

Microwave Limiters

A microwave limiter is a self-controlled attenuator and a power modulation device. When the input signal power is small, it passes through without attenuation. When the input power increases beyond a certain value, the attenuation increases rapidly. This power value is called the threshold level. After the input power exceeds the threshold level, the output power no longer increases. It is often used in microwave sweep signal sources or phase detection systems to keep the output signal amplitude stable.