Current Situation and prospect for coaxial connectors

A radio frequency coaxial connectors (RF connector for short) is an interface component which transmits radio frequency signals. It electrically connects or separates devices, components, systems and subsystems, and transmits radio frequency signals, mainly used in wireless communication equipment, automotive electronic equipment, medical equipment, aerospace and military navigation etc.

Problems faced by the domestic coaxial connectors industry

 sma connector industry in China is still immature and needs to be integrated and standardized.

a) Small and micro-business make up more than half participants.

b). The strategy in market competition is outdated. Products are sold below cost and other unfair competition has also emerged.

c). Poor globalization awareness, unable to adapt to the new economic era.

d). Digitalization and e-commerce management are backward.

e). No RF connector major in most universities and coaxial connectors, resulting in a shortage of professional talents.

f). The continuous influx of foreign capital and localized production.

g). The technology of precision connector and surface mount sma connector falls behind.

h). Passive intermodulation has not attracted enough attention.

Trend of the RF connector market

In order to adapt to the trend of coaxial connectors, modularization, high-frequency, high-precision, and high-reliability of the machine equipment, renovation has been made so that the RF connectors continue to be miniaturized, high-reliable, high-frequency, and high-power. Below are development trends for RF connectors:

a). Smaller size. SSMA connector, SSMC connector, MMCX connectors and 1.92mm, 1.85 mm, 1mm series connectors have been created to meet the requirements of machines, especially the space electronic system.

b). High frequency and wide transmission coaxial connectors. The upper limit of the working frequency of the 2.92mm series connector is 46GHz while 2.4 mm series connector can reach 50GHz and 1.85 mm series connector is 65GHz; The upper limit of the working frequency of the coaxial system has been extended to sma connector with the 1 mm series connector from some developed countries , which meets the requirements for the development of weapon to a higher frequency.

c). Multi-function: In addition to the role of a bridge, it should also process signals, such as filtering, phase modulation, mixing, attenuation, detection, amplitude limiting.

d). Low standing wave and loss: to meet the needs of weapon systems and precision measurement.

e). Large capacity and power: Large capacity and power are mainly adapted to the needs of the information highway.

f). Surface mount: Mainly meet the needs of sma connector technology (surface mount technology) and it can simplify the wiring structure design of the multi-layer printed boards.

3. Prospects of coaxial connectors market

The downstream industries provide a broad market for RF connector industry. Documents such as the “National Medium and Long-term Science and Technology Development Plan Outline (2006-2020)” and “ Electronic Information Industry Adjustment and Revitalization Plan” are strongly supportive of the development of the information industry and third-generation wireless communication technology. As the core components to ensure the stability and quality of radio frequency signal transmission in coaxial connectors, the development of RF connectors conforms to the national policy of supporting key components in the communication and information industries.