Title :
Electrically tunable integrated patch antenna with planar filter
Author :
Lovato, Ricardo ; Tianjiao Li ; Xun Gong
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL, USA
Abstract :
An electrically tunable planar hairpin filter integrated with a microstrip patch antenna is proposed in this paper. The patch antenna is integrated as a resonator, contributing to a second-order filter. The integration is performed to eliminate 50-ohm transition losses and reduce the overall structure size. The antenna is magnetically coupled to the hairpin resonator and operates at a center frequency of 3.03 GHz with a fractional bandwidth of 2.38%. The gain of the patch antenna is 5.41 dBi. Electrical tuning ability is provided via four varactors with a filter response tuning range from 2.77 GHz to 3.19 GHz.
Keywords :
UHF antennas; UHF filters; UHF resonators; microstrip antennas; microwave filters; microwave resonators; planar antennas; resonator filters; varactors; electrically tunable integrated microstrip patch antenna; electrically tunable planar hairpin filter; frequency 2.77 GHz to 3.19 GHz; hairpin resonator; second-order filter; structure size reduction; transition loss elimination; varactor; Antenna measurements; Broadband antennas; Frequency measurement; Performance evaluation; Resonator filters; Wideband; antenna integration; bandpass filter; patch antenna; tunable filter;
Conference_Titel :
Wireless and Microwave Technology Conference (WAMICON), 2015 IEEE 16th Annual
Conference_Location :
Cocoa Beach, FL
DOI :
10.1109/WAMICON.2015.7120365
