June 2025

Four cost-reduction technologies for phased array antenna design: 1) Use a multi-layer PCB integrated feed network to reduce interconnect components; 2) Use low-cost LCP materials (dielectric constant 2.9±0.1); 3) Optimize the unit spacing to 0.5λ~0.7λ to reduce the number of array elements; 4) Introduce digital beamforming to reduce the number of RF links. Unit Simplification […]

Six major criteria for selecting phased array antenna manufacturers: 1) frequency coverage (e.g. 2–40 GHz); 2) gain accuracy (within ±1 dB); 3) beam switching speed (<1 μs); 4) sidelobe suppression capability (<-30 dB); 5) environmental adaptability (-40 to +85°C); 6) support for customized interfaces (e.g. SPI, LVDS) Phased Array Lessons Last summer’s Houston ground station

There are three major performance differences between waveguide and coaxial cable: 1) Frequency range: waveguide is suitable for high frequency bands above 30GHz, while coaxial cable is commonly used below 18GHz; 2) Loss: coaxial cable has greater loss at high frequencies (such as RG-405 reaching 0.5dB/m at 10GHz), and waveguide has lower loss (<0.1dB/m); 3)

Three effective methods for testing waveguide components include: 1) using a vector network analyzer (VNA) to measure S parameters, ensuring that the frequency range covers 26.5 GHz to 40 GHz; 2) performing a standing wave ratio (VSWR) test with a value of less than 1.5:1; and 3) implementing a power handling capability test, applying a