Microstrip patch antennas and their arrays may be rare but are the most widely used antenna form. They have a simple structure and can be formed by a dielectric, a metal conductor patch on the dielectric layer, and a ground plane. Even the dielectric in the middle can be an air structure. A typical microstrip patch antenna is made on a printed circuit board (PCB), and a fine line structure is etched on the conductive metal layer using a photocopying method
Whether the signal quality will be affected depends on the method of adding test points and how fast the signal is. Basically, the additional test points (without using the existing vias (via or DIP pins) as test points) may be added to the line or a short line may be pulled out from the line. The former is equivalent to adding a very small capacitor to the line, and the latter is an additional branch
High-frequency circuit boards refer to special circuit boards with higher electromagnetic frequencies, and are one of the most difficult boards
In order for silicon to turn into a semiconductor chip, it needs to go through the several complex process of wafer manufacturing, oxidation, photolithography, etching, deposition and ion implementation, metal wiring, Eds and packaging.
Circuit materials rely on high-quality conductors and dielectric materials to connect modern complex components to each other for optimal performance. However, these PCB copper conductors, whether DC or millimeter wave (mmWave) PCB boards, need protection against aging and oxidation
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