Research Article

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

Table 5

Simulated beamwidths at −3 dB and at −10 dB of the proposed antenna with and without the parasitic coupling apertures at the lower, center, and upper frequencies of WLAN.

Frequency (GHz)HPBW (−3 dB beamwidth)−10 dB beamwidth
Without parasitic coupling aperturesWith parasitic coupling aperturesWithout parasitic coupling aperturesWith parasitic coupling apertures
-plane-plane-plane-plane-plane-plane-plane-plane

2.412105°65°67°67°275°116°137°137°
2.450106°64°67°67°275°116°137°137°
2.484108°63°66°66°276°116°138°138°