IEEE Antennas and Wireless Propagation Letters · 2009 · 35 citations · 6 references
EngineeringElectrical EngineeringAntennasMicroelectronicsMicrowave EngineeringAntenna DesignAntenna MeasurementMicrowave AntennasMicrowave Integrated CircuitsPlanar AntennasRadio-frequency Integrated CircuitsGaas Monolithic Microwave Integrated CircuitsIntegrated AntennasLog-periodic Antenna DesignLog-periodic AntennasMicrowave Antenna DesignMillimeter-wave Integrated CircuitsMillimeter-wave Planar AntennasReturn Loss
We fabricated a compact, 94-GHz log-periodic planar antenna on GaAs substrate. We used millimeter-wave monolithic integrated circuit (MMIC) process technology to fabricate the on-chip antenna. An air-bridge crossover is used to replace the conventional bonded structure for crisscross connection, which is compatible with active devices and circuits. The fabricated antenna chip size is 1.2 times 2.6 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . Measurement results show that this antenna can operate from 87 to 99.5 GHz with its return loss better than -10 dB. At 94 GHz, the log-periodic antenna has a return loss of -11 dB and 4.8 dBi of gain.
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