Title

A New Class Of 3-D Filter/Antenna Integration With High Quality Factor And High Efficiency

Keywords

Bandpass filter; Cavity resonator; Packaging; Slot antenna; Time-domain analysis

Abstract

A novel approach to integrate high-Q 3-D filters with highly efficient slot antennas is presented in this paper. This technique allows for seamless integration of 3-D filters and antennas, which can greatly improve the antenna efficiency and significantly reduce the form factor of RF front ends. A prototype four-pole chebyshev cavity filter integrated with a slot antenna is demonstrated in X band. The center frequency and fractional bandwidth of the filter/antenna system are 9.96 GHz and 6.0%, respectively. Due to the high Q factor (∼1,000) of the cavity resonator, the efficiency of the filter/antenna system is measured to be 89%, compared with the measured S 21 of -O.5 dB (89%) for an identical filter. This means a near 100% efficient slot antenna is achieved within this integrated filter/antenna system. The measured impedance matching, efficiency, gain, and radiation pattern closely agree with simulation results. © 2010 IEEE.

Publication Date

10-15-2010

Publication Title

IEEE MTT-S International Microwave Symposium Digest

Number of Pages

892-895

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/MWSYM.2010.5516915

Socpus ID

77957815012 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/77957815012

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