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Uni-directional antenna using a probe-fed open waveguide with two-stacked-coupling aperture
Author(s)
Date Issued
July 2, 2018
Type
Conference Paper
Abstract
This paper presents a design of symmetrically unidirectional beam antenna implemented by a probe-feed open waveguide with two-stacked-coupling aperture as a primary feed for parabolic reflector. This proposed antenna is able to rectify the asymmetry bi-directional beam and also achieves a symmetrically uni-directional beam through the influence of two-stacked-coupling aperture. The antenna geometry is composed of a radiating rectangular waveguide vertically jointed to the two open-end waveguides of an identical widthwise (i.e., an open-end waveguide stacked on top and the other underneath) the radiating section to induce the radiation beamwidth. The radiating rectangular waveguide is excited by a linearly probe with an attached circular disc. To design the antenna, its parameters are investigated by using an electromagnetic microwave simulator. In the analysis, the probe-feed open waveguide without and with stacked-coupling-aperture are demonstrated. Apparently, this antenna operates the WLAN frequency band of 2.4-2.5 GHz with the magnitude of S11 better than -10 dB. The simulated half-power beamwidths in both the E- and H-planes are equal 70° with the maximum gain of 7.1 dBi. The results will be reported and discussed in the paper.
Citation
Ecti Con 2018 15th International Conference on Electrical Engineering Electronics Computer Telecommunications and Information Technology, 270-273, 2018