Three-frequency transceiver integrated microstrip antenna based on the harmonic measurement

Based on harmonic measurement, the paper designs one transmitting two receiving triple frequency microstrip antenna respectively working at 2.4 GHz and 4.8 GHz, 7.2 GHz bands. The two high frequency antennas are placed side by side at the top of the low frequency bands antennas, which can realize low frequency bands antennas transmit electromagnetic wave and two high frequency antennas receive reflected wave.