September 4, 2025

Directional couplers typically have 1–6 coupling holes, depending on type: microstrip designs use 1–3 (for 10–40GHz, <0.5dB loss), while waveguide models may have 4–6 (supporting 50–100W, VSWR<1.2). What’s a “Hole” Here? For context, a typical X-band (8–12GHz) microstrip directional coupler uses coupling holes with diameters ranging from 0.3mm to 0.8mm—​​a 167% variation​​—depending on whether you […]

A transmitting antenna converts electrical signals into electromagnetic waves, typically handling power levels from 10W to 50kW. A receiving antenna captures these waves and converts them back into electrical signals, usually operating at low power, like -50 dBm to -20 dBm. use Transmitting antennas are used in radio stations, TV signal towers and mobile communication