Table of contents :
What is a coaxial cable?
What is a Micro Coaxial Cable Connector?
Why Micro Coaxial Cable is the First Choice for High Speed Applications?
Why can I-PEX micro coaxial connectors be widely used?
A cable with a simple structure and a conductor wrapped with a layer of coating is called an electronic wire. The cable with multi-layer structure, the center conductor is wrapped with an insulating layer, the outer conductor and the outer layer are called ultra-fine coaxial cables. The outer conductor of the coaxial cable plays the role of electromagnetic shielding, and the electrical signal transmitted through the central conductor is not easily affected by external electromagnetic waves (electromagnetic noise).
The size of the center conductor used in the coaxial cable adopts the American Wire Gauge (AWG) standard, and the larger the AWG number, the smaller the size of the center conductor.
In general, coaxial cables with an outer diameter (OD) of 1 mm or less are referred to as "micro-coaxial" cables. Ultra-thin coaxial cables are widely used for signal transmission between internal module boards of personal computers, tablet computers, smart phones and other equipment, as well as signal transmission between precision instruments such as medical, industrial, automotive and aviation.
What is a Micro Coaxial Cable Connector?
The ultra-thin coaxial cable connector is mainly used to connect digital signals between module boards through the differential transmission mode of the ultra-fine coaxial cable. For proper signal transmission, the center conductor that transmits the signal needs to be connected to the signal circuit on the PCB board through the terminals of the connector. The outer conductor of the cable needs to be electrically connected to the PCB board through the metal part of the connector - the shell. The electrical connection between the outer conductor and the PCB board through the connector shell is called "grounding".
The main process of wire harness preparation:
- Prepare for Cable Assembly
- Install the cable assembly onto the male body assembly and solder the exposed wires to the male signal terminals
- Positioning lock assembly (or lock) male seat part
- Cap the male housing and solder the required areas to complete the male harness
通常使用极细同轴线的原因是因为它比屏蔽式FPC / FFC具有更高的灵活性，即使弯曲也能保持稳定的电特性。
为什么 I-PEX 的极细同轴线连接器可以被广泛使用?
I-PEX Connectors 是极细同轴线连接器行业的先驱, 提供适用于多种不同应用的同轴线连接器产品。I-PEX 极细同轴线连接器在 PC 平板连接器行业市场占有率名列前茅。
(CABLINE®-VS 母座 : VESA 标准连接器)
With the development of high-performance, power-saving, and miniaturized electronic equipment, the demand for high-speed signals is increasing, the number of electronic components operating at low voltage is increasing, and the density of installed electronic components is also increasing. If electromagnetic noise is added from the outside, it may cause unnecessary current in the internal circuit of the device, causing failure or damage of high-performance electronic components, and may also cause damage to electronic devices. .In addition, in electronic devices with wireless communication functions (such as laptops, tablets, and mobile phones), electromagnetic waves generated inside the devices increase the noise of the wireless communication circuit, thereby degrading the antenna reception performance.
.In this case, in general, the measure against electromagnetic noise inside the equipment is to physically shield the electromagnetic noise by incorporating an electromagnetic noise filter element into the circuit and/or adding a metal shield to the element.
With the introduction of small devices mounting high-density components, and the emergence of high-speed signals in these devices, it is necessary to take measures against electromagnetic noise at device jumpers. I-PEX has developed a series of connectors that solve the problem of electromagnetic noise in the connector, with suitable grounding structure and covering layer, including the mounting position of the signal terminal tail with metal shielding ( ZenShield ® ) . This solution is widely adopted by many customers to prevent electromagnetic interference, especially on high-performance devices equipped with wireless communication functions such as Wi-Fi®, GPS, LTE, etc.
For more information, please contact your local I-PEX sales representative.