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The space solar power system (SSPS) requires a large phased array antenna (PAA) with high efficiency and high accuracy but with the conventional method there arises the problem of loss in splitters and phase shifters. In this research, we use a structure integrates phase-locked loop (PLL) oscillators to each antenna element, in order to achieve the objective of simplifying the antenna and increasing...
Fully integrated frequency-phase generators for a 6-18 GHz wide-band phased-array receiver element are presented that generate 5-7 GHz and 9-12 GHz first LO signals with less than -95 dBc/Hz phase noise at 100 kHz offset. Second LO signals with digitally controllable four-quadrant phase- and amplitude spread with better than 3deg resolution are generated and allow removal of systematic reference clock...
A novel reconfigurable circularly polarized (CP) transmitter implemented by the indirect-controlled-phased-source (ICPS) technique is proposed. The proposed transmitter has the advantages of switchable polarization and wide axial ratio bandwidth. A wideband CP transmitter, with a bandwidth of 31.33% ranging from 700 to 960 MHz, is demonstrated by integrating a dual L-probe-fed patch antenna and two...
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