CST – Computer Simulation Technology

Title:
A High-Gain Wideband Antenna With Frequency Selective Side Reflectors Operating in an Anti-Resonant Mode
Author(s):
Dongho Kim, EunHee Kim
Source:
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Vol./Issue/Date:
VOL. 14, 2015
Year:
2015
Page(s):
pp 442 - 445
Keywords:
Terms—Anti-resonance, Fabry–Perot resonance, frequency selective reflectors, high-gain antenna, side reflectors, wide bandwidth
Abstract:
We propose a new high-gain wideband antenna with simple frequency selective reflectors (FSRs), which are installed at both sides of a source dipole antenna. The main role of each FSR is to transmit electromagnetic waves in a boresight direction, which is intended to increase antenna gain and an impedance-matching bandwidth at the same time. To do that, we operate the antenna in an anti-resonance mode,which is a conceptual shift of conventional Fabry–Perot (FP) resonance operation. Hence, the proposed FSRs operating under the anti-resonancemode collimate outgoing waves toward their lateral direction rather than a conventional normal direction. As a result, we can improve both the realized gain and the bandwidth up to about 12 dBi and 41% ( dB), respectively, only with one dipole antenna. All experiments show good agreement with predictions, which confirm the validity and usefulness of our approach.
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