Wideband Dual-polarized Microstrip Antenna with H-shaped Coupling Slot

김장욱,; 전주성,

doi:10.9708/jksci.2014.19.4.071

Cited by 1 publication

(1 citation statement)

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“…By loading slits and parasitic patches, multiple operating modes can be excited in the resonant cavity, and if the resonant frequencies are close, the multiple operating modes will be coupled together, then the operating bandwidth of the microstrip antenna can be effectively extended [21]- [23]. In addition, [24] [25]show that the use of H-shaped coupling apertures provides stronger coupling and makes it easier to achieve broadband designs for antennas.…”

Section: A Microstrip Antenna Based On Multimode Resonancementioning

confidence: 99%

A 2.5D Broadband Non-Reciprocal Metasurface Based on Aperture-Coupled Feed Structures

Gu,

Zheng,

Zhou

et al. 2023

IEEE Access

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In traditional non-reciprocal metasurfaces based on antenna-circuit-antenna structure, the radiation module and the non-reciprocal circuit module are coplanar, which occupies extra surface area and has the inherent defect of narrow operating bandwidth. Therefore, a new 2.5D non-reciprocal metasurface based on the aperture coupling structure is proposed to realize the separate design and broad operating bandwidth, in which the non-reciprocal circuit module is perpendicular to the radiation module. In addition, this work improves isolation to over 35 dB without affecting the radiation mode and resonance frequency. Based on multimode resonance theory, a broadband microstrip antenna is further presented to obtain a broader operating bandwidth. By exciting multiple resonant modes with similar frequencies in the resonant cavity, the relative bandwidth reaches up to 38.2%. The experimental results coincide well with the simulation results, which fully demonstrate the validity of the proposed design.

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