Pattern Reconfigurable High Gain Spherical Dielectric Resonator Antenna Operating on Higher Order Mode

This letter proposes a pattern reconfigurable high gain spherical dielectric resonator antenna (DRA) operating on higher order mode. Two microstrip patches were used to excite TE 301 mode in the different direction. A reconfigurable switch network was designed and it has three switching modes for se...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2019-01, Vol.18 (1), p.128-132
Main Authors: Ahn, Byung Kuon, Jo, Hye-Won, Yoo, Jong-Sang, Yu, Jong-Won, Lee, Han Lim
Format: Article
Language:English
Subjects:
Antenna radiation patterns
Dielectric resonator antennas (DRA)
Dielectrics
High gain
higher order mode
Magnetic resonance
Magnetic separation
Microstrip
Microstrip antennas
pattern reconfigurable antenna
Radio antennas
Reconfiguration
Resonators
Spherical antennas
Switches
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Summary:This letter proposes a pattern reconfigurable high gain spherical dielectric resonator antenna (DRA) operating on higher order mode. Two microstrip patches were used to excite TE 301 mode in the different direction. A reconfigurable switch network was designed and it has three switching modes for selecting each patch alone or selecting them simultaneously. The proposed antenna can reconfigure its radiation pattern by using a feeding structure, which is consist of two microstrip patches and the reconfigurable switch network. A prototype antenna operating on TE 301 mode at 5.8 GHz was fabricated by ceramic material. By experiment, we validated the new concept of pattern reconfigurable spherical DRA.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2018.2882871