Open AccessA NOVEL ANTENNA FEEDING NETWORK WITH SEPARATELY RESONANT FREQUENCY AND IMPEDANCE MATCHING TUNABLE CAPABILITY
Author(s) -
Linzhi Liu,
Qianyin Xiang,
Dengyao Tian,
Quanyuan Feng
Publication year - 2019
Publication title -
progress in electromagnetics research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.245
H-Index - 33
ISSN - 1937-6480
DOI - 10.2528/pierl18120709
Subject(s) - antenna (radio) , impedance matching , electrical impedance , antenna tuner , matching (statistics) , materials science , optoelectronics , electronic engineering , computer science , electrical engineering , telecommunications , dipole antenna , engineering , medicine , coaxial antenna , pathology
A novel C-L-L π-type feeding network is presented to tune the working frequency and impedance matching of antenna. Two varactors are used in the tunable feeding network as tunable elements for antenna resonating frequency and impedance matching tuning. The tunable capability of the network is studied, and a patch antenna is used to verify the tunable feeding network. The tunable feeding network is designed, fabricated and measured. The measurement results show that the patch antenna can be tuned from 630 MHz to 1.04 GHz with a maximum impedance bandwidth of 24 MHz of S11 less than −10 dB.
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