Compact Antenna Array with Newly Designed Decoupling Network
Keywords:
Compact array, decoupling network, eigen-mode analysis, microstrip lineAbstract
The design of a compact two-element antenna array with highly isolated ports is presented in this paper. The high port isolation is achieved by inserting a decoupling network between the ports of the antenna elements. The decoupling network is designed based on the method of eigen-mode analysis and is realized by the simple microstrip lines. The systematic design procedure of the decoupling network is presented. The achieved microstrip decoupling network is simple and easy to fabricate. The measured results show that the isolation between the antenna ports has been increased by more than 13 dB for a two-element monopole array with the element spacing of 0.1lambda.
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