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2019-07-12
Enhancement Bandwidth of Half Width-Microstrip Leaky Wave Antenna Using Circular Slots
By
Progress In Electromagnetics Research C, Vol. 94, 59-74, 2019
Abstract
This paper presents a new technique to enhance impedance bandwidth of single layer half width microstrip leaky wave antenna (HW-MLWA) with continuous main beam scanning. The enhancement is realized by etching four circular slots on the radiation element. Two of the circular slots are placed close to the feed port, and the others are close to the matching load. The wide main beam scanning is between +12˚ and +70˚ when operation frequency sweeps between 4.3 GHz and 6.5 GHz. A comparison between the Uniform HW-MLWA (reference) and the proposed HW-MLWA with circular slots is providedto study the effectiveness of the added circular slots. The proposed HW-MLWA is fabricated and tested. The measured impedance bandwidth is 49.9% (4.28 GHz to 7.13 GHz) with peak gain 10.31 dBi at 5 GHz, hence the proposed antenna can be considered as a suitable candidate for C-band applications.
Citation
Mowafak K. Mohsen, Mohd Sa'ari Mohamad Isa, Azmi Awang Md Isa, Muhannad Kaml Abdulhameed, Mothana Lafta Attiah, and Ahmed Musa Dinar, "Enhancement Bandwidth of Half Width-Microstrip Leaky Wave Antenna Using Circular Slots," Progress In Electromagnetics Research C, Vol. 94, 59-74, 2019.
doi:10.2528/PIERC19040805
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