Research Article

Design of Symmetrical Beam Triple-Aperture Waveguide Antenna for Primary Feed of Reflector

Table 3

Simulated beamwidths at −3 dB and at −10 dB for various heights of the parasitic coupling apertures () in the - and -planes for the lower, center, and upper frequencies of WLAN.

Aperture heights ()2.412 GHz2.45 GHz2.484 GHz
HPBWBeamwidthHPBWBeamwidthHPBWBeamwidth
(−3 dB)−10 dB(−3 dB)−10 dB(−3 dB)−10 dB
-plane-plane-plane-plane-plane-plane-plane-plane-plane-plane-plane-plane

104°67°200°124°208°66°202°124°105°64°202°124°
78°66°196°130°74°64°196°130°72°63°128°196°
67°67°137°137°67°67°137°137°66°66°138°138°
69°69°144°142°69°69°142°142°69°69°142°142°
70°71°154°148°70°70°154°148°71°70°152°148°