Abstract
Dual beam antennas with similar gain and beam-width require multiple antennas fed separately with controlled input phase shifts or a single antenna with a complicated feeding mechanism. To reduce this design complexity, this paper presents an approach that uses one antenna, a simple feeding network and a pair of simple metamaterial-based frequency selective surfaces with uniform rectangular unit cells. Four different surfaces are studied for a 13.6 GHz scalable design fed by one planar source antenna at a time. Results show that different combinations vary the near field phase, which affects beam orientation and gain, and that a single far field beam can be transformed into a dual beam with a split up to 34°. The best design has simulated and measured gain of 14.5 dB for the boresight beam and 11 dB for each of the dual beam.
Original language | English (US) |
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Title of host publication | 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 621-622 |
Number of pages | 2 |
ISBN (Electronic) | 9781728146706 |
DOIs | |
State | Published - 2021 |
Externally published | Yes |
Event | 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Singapore, Singapore Duration: Dec 4 2021 → Dec 10 2021 |
Publication series
Name | 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings |
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Conference
Conference | 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 |
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Country/Territory | Singapore |
City | Singapore |
Period | 12/4/21 → 12/10/21 |
Bibliographical note
Funding Information:The work is partially supported by IEEE Microwave Theory and Techniques Society MTT-SAT student grant program
Publisher Copyright:
© 2021 IEEE.
Keywords
- array
- gain
- metamaterials
- near-field
- phase