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What are the advantages and disadvantages of the radial line slot array antenna?

Backhaul (telecommunications)

Line (geometry)

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The radial line slot array (RLSA) antenna offers several advantages and disadvantages. One advantage is its high gain and efficiency, making it suitable for applications requiring a directed narrow beam, such as backhaul networks for 5G communication . RLSA antennas also have a planar and low-profile design, which is beneficial for compact and cost-effective antenna systems . Additionally, RLSA antennas can provide circular polarization, allowing for improved signal quality and cross-polar rejection . However, RLSA antennas have traditionally had limited gain-bandwidths, typically less than 10% . This limitation has been addressed through the use of nonuniform radial TEM waveguides, which significantly increase the gain-bandwidth to over 30% . Another disadvantage of RLSA antennas is the potential problem of center frequency shift when using a half-cut design, which can disrupt the power flow within the antenna's cavity . Overall, RLSA antennas offer high gain, efficiency, and a low-profile design, but their gain-bandwidth and potential center frequency shift should be considered.

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Proceedings Article•DOI Low-Cost Radial Line Slot Array Antenna for Millimeter-Wave Backhaul Links Muhammad U. Afzal, Nishat Yasmin Koli, Karu P. Esselle - Show less +2 more 22 Mar 2021 2 Citations	The paper does not explicitly mention the advantages and disadvantages of the radial line slot array antenna.
Journal Article•DOI Multibeam half radial line slot array (RLSA) antennas Teddy Purnamirza, Ranggi Rian Syaputra, J. M. Shardarbekovich, Imran Mohd Ibrahim, K. A. Batyrbekovich, Mulyono Mulyono, Depriwana Rahmi, Halim Mudia - Show less +7 more 02 Jan 2023-Electromagnetics	The provided paper does not explicitly mention the advantages and disadvantages of the radial line slot array antenna.
Open access•Posted Content•DOI A Novel Circularly Polarized Radial-Line Slot Array Antenna with Beam-Steering Solution 28 Nov 2022	The advantages and disadvantages of the radial line slot array antenna are not mentioned in the provided paper.
Open access•Posted Content•DOI A Novel Circularly Polarized Radial-Line Slot Array Antenna with Beam-Steering Solution 28 Nov 2022	The advantages and disadvantages of the radial line slot array antenna are not mentioned in the provided paper.

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