TY - JOUR
T1 - Wideband Polarization Reconfigurable Dielectric Resonator Antenna
AU - Li, Bin
AU - Zhou, Ying
AU - Wu, Mengda
AU - Xia, Yuxuan
AU - Liu, Yong
AU - Lyu, Xin
N1 - Publisher Copyright:
© 2017 Editorial Department of Journal of Beijing Institute of Technology.
PY - 2017/12/1
Y1 - 2017/12/1
N2 - A wideband polarization reconfigurable dielectric resonator antenna excited by quasi-lumped quadrature coupler (QLQC) is proposed. By adjusting the value of varactor diode on the QLQC feed network, both the wideband LP and CP dielectric resonator antennas (DRA) modes can be achieved. By selecting a different feed port, left-and right-handed CP conversion can be realized. It is found that the 10 dB impedance bandwidth of the LP and CP modes are 10.1% and 44.9%, respectively. For the CP mode, a very wide 3 dB axial ratio bandwidth of 37.7% can be obtained which is much larger than that of the microstrip patch counterpart (3.8%). It is worth mentioning that the wideband CP DRA has a stable broadside radiation pattern across the whole operating band where the boresight gain is larger than 3 dBi.
AB - A wideband polarization reconfigurable dielectric resonator antenna excited by quasi-lumped quadrature coupler (QLQC) is proposed. By adjusting the value of varactor diode on the QLQC feed network, both the wideband LP and CP dielectric resonator antennas (DRA) modes can be achieved. By selecting a different feed port, left-and right-handed CP conversion can be realized. It is found that the 10 dB impedance bandwidth of the LP and CP modes are 10.1% and 44.9%, respectively. For the CP mode, a very wide 3 dB axial ratio bandwidth of 37.7% can be obtained which is much larger than that of the microstrip patch counterpart (3.8%). It is worth mentioning that the wideband CP DRA has a stable broadside radiation pattern across the whole operating band where the boresight gain is larger than 3 dBi.
KW - Dielectric resonator antenna (DRA)
KW - Polarization reconfigurable
KW - Quasi-lumped quadrature coupler (QLQC)
KW - Wideband
UR - http://www.scopus.com/inward/record.url?scp=85044417808&partnerID=8YFLogxK
U2 - 10.15918/j.jbit1004-0579.201726.0407
DO - 10.15918/j.jbit1004-0579.201726.0407
M3 - Article
AN - SCOPUS:85044417808
SN - 1004-0579
VL - 26
SP - 477
EP - 483
JO - Journal of Beijing Institute of Technology (English Edition)
JF - Journal of Beijing Institute of Technology (English Edition)
IS - 4
ER -