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Design of a C-band 2×2 Quasi-Yagi antenna array

A C-band 2×2 microstrip quasi-Yagi antenna array has been designed to meet the requirement of small volume and light weight antenna of a C-band microwave communication system. The simulation and optimization for the antenna unit were conducted and the structure parameters were extracted. The fabrication and test for the 1×2 microstrip quasi-Yagi antenna array were implemented on the bases of simulation. The results of simulation and test can coincide with each other, and the return loss is less than -10 dB in the range of 4 to 5 GHz. The simulation for the 2×2 antenna array has been carried out basing on the test of 1 ×2 antenna array, and the simulated gain of the antenna array is more than 13 dB, the return loss is less than -10 dB in the frequency range of requirement.