Research Article

Investigation of Patch Antenna Based on Photonic Band-Gap Substrate with Heterostructures

Table 1

Main characteristic parameters of the patch antennas.

Return lossBandwidth (S11 = −10 dB)VSWRMaximum gain

PBG patch antenna−31 dB (at 1.316 GHz, 4 GHz)5.64%1.0565 dB
Conventional patch antenna−20 dB (at 3.01 GHz)1.92%1.2004−3 dB