IEEE Transactions on Antennas and Propagation · 2013 · 36 citations · 4 references
EngineeringElectrical EngineeringAntennasMicrowave EngineeringWireless CommunicationsAntenna ArraysAntenna DesignAntenna MiniaturizationMicrowave AntennasPlanar AntennasSmall AntennasCircularly Polarized Antenna DesignCircularly Polarized Antenna GainCircularly Polarized AntennasCircularly Polarized Radiation PatternsCompact Antenna DesignCompact Coupler DesignFolded AntennasMiniaturized Antennas
The development and optimization of a circularly polarized (CP) antenna using an array of four folded-shorted patch elements is investigated. The realized antenna is compact ( 0.2λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> by 0.2λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> ), highly integrated, and offers good radiation performance at 400 MHz. A compact coupler-based feeding network for the four elements within the array, integrated into the antenna ground plane, provides a sequential 90° phase difference between the radiating folded-shorted patches. This very compact CP antenna design may be useful for microsatellite and other miniaturized phased array systems for communications.
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