Miniaturized Printed Filtering Antenna

Abstract

A new co-design approach is used to synthesize and design the new printed Bandpass Filtering Antenna. For the purpose of miniaturization and enhancing the overall performance of the circuit, a multi-function module is designed. It performs filtering and radiating, simultaneously with the help of co-design approach. The parallel half wavelength coupled microstrip lines and inverted-L antenna is used for synthesizing the bandpass filtering antenna. The inverted-L antenna acts as a last resonator and provides load impedance of the bandpass filter. The equivalent circuit components of inverted-L antenna are acquired by comparing with the simulation results and then used for synthesis of Filtering Antenna. A complete design methodology is then described after the synthesis process. Here, third-order Chebyshev bandpass filter with center frequency 2. 45 GHz and 0. 1 equal-ripple response is designed as an example. The designed structure is compact and provides good design accuracy.

References

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