2021 · 11 citations · 6 references
EngineeringElectrical EngineeringAntennasMicroelectronicsMicrowave EngineeringAntenna ArraysBeam SteeringMicrostrip AntennasMicrowave AntennasMicrowave Integrated CircuitsMicrowave Semiconductor DevicesAntenna Array DesignArray DesignInsertion LossInsertion Loss MeasurementInsertion Loss ReductionMicrostrip LinesMicrostrip Transmission LinesMicrowave Beamforming
A 24-GHz switched beamformer in GaAs for a 4-element linear antenna array is proposed, which is composed of an absorptive SP4T switch and a 4×4 Butler matrix. Through the utilization of slow-wave microstrip lines and bridged-T coils, a compact chip size of 2 mm × 2 mm is achieved. The measured insertion loss at 24 GHz is within 11.16±0.95 dB and the measured phase error is less than 6° for the four beam states.
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Wooyeol Choi, Konggyun Park, Young‐Min Kim et al. · IEEE Transactions on Microwave Theory and Techniques · 2010 · 42 citations