Study on Miniaturization of Multi-Beam 16-Unit Transmitting Module

Multi-beam radar has superior detection performance, data rate, anti-interference ability and survivability. Based on the miniaturization, integration and low-cost requirements of satellite radar, the research of SiP three-dimensional packaging of 4 beam 16-channel transmission module with independent phase and amplitude is carried out, combined with advanced packaging technology. The module adopts BGA for signal transmission interconnection. In order to ensure the electromagnetic performance of the module, all electromagnetic transmission structures of 16 channels are designed and verified. And the vertical interconnection and the BGA board level interconnect was analyzed and optimized. The Ku-band BGA transmitting module was obtained and size is 12.
$8\text{mm}\times 12.8\text{mm}\times 4\text{mm}$
. The single channel output power is bigger than 20 dBm.