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Dual-Band Single-Patch MIMO Antenna with Capacitor-Loaded Shorting Posts (CLSPs) as Modal Tuners
- Issue Date
- Jun-2025
- Publisher
- Institute of Electrical and Electronics Engineers
- Keywords
- CLSP; Dual-band decoupling; modal tuners
- Citation
- IEEE Antennas and Wireless Propagation Letters, v.24, no.6, pp 1482 - 1486
- Pages
- 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE Antennas and Wireless Propagation Letters
- Volume
- 24
- Number
- 6
- Start Page
- 1482
- End Page
- 1486
- ISSN
- 1536-1225
1548-5757
- Abstract
- This letter introduces a novel dual-band decoupling concept using capacitor-loaded shorting posts as modal tuners to align the resonances of TM02 and TM12 with TM01 and TM11, respectively. Leveraging the modal superposition of two pairs of anti-phase current modes, a dual-band, dual-port single-patch antenna is developed, operating in the 3.5 GHz and 5.5 GHz frequency bands. Measurements confirm the design's effectiveness, improving the isolation from 3.5 dBi to over 12 dB, with peak gains of 6.5 dBi and 7.1 dBi in the respective bands.
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