IEEE Transactions on Antennas and Propagation · 1998 · 858 citations · 2 references
EngineeringElectrical EngineeringAntennasMicrowave EngineeringWireless CommunicationsAntenna BandwidthAntenna DesignBroadband AntennasMicrowave AntennasPlanar AntennasSmall AntennasAntenna Impedance BandwidthBandwidthBandwidth EnhancementBroadband Antenna DesignImpedance BandwidthMonopole AntennasPlanar Monopole AntennasWideband Antennas
The circular disc monopole (CDM) antenna has been reported to yield wide‑impedance bandwidth. The study proposes new monopole configurations—elliptical, square, rectangular, and hexagonal—and a simple formula to predict the lower bandwidth edge. The authors design and analyze these configurations, deriving a formula for estimating the lower bandwidth edge for each. Experiments show the elliptical disc monopole with ellipticity 1.1 achieves a bandwidth of 1.21–13+ GHz at VSWR < 2, while a CDM twice the diameter yields comparable results.
The circular disc monopole (CDM) antenna has been reported to yield wide-impedance bandwidth. Experiments have been carried out on a CDM that has twice the diameter of the reported disc with similar results. New configurations are proposed such as elliptical (with different ellipticity ratios), square, rectangular, and hexagonal disc monopole antennas. A simple formula is proposed to predict the frequency corresponding to the lower edge of the bandwidth for each of these configurations. The elliptical disc monopole (EDM) with ellipticity ratio of 1.1 yields the maximum bandwidth from 1.21 GHz to more than 13 GHz for voltage standing wave ratio (VSWR)<2.
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Antenna theory, analysis, and design
W. Croswell · IRE Transactions on Telemetry and Remote Control · 1982 · 8.6K citations