High-Impedance Surface-Based Null-Steering Antenna for Angle-of-Arrival Estimation

Jo Tamura; Hiroyuki Arai; Tatsuo Itoh

doi:10.1109/TAP.2021.3137469

High-Impedance Surface-Based Null-Steering Antenna for Angle-of-Arrival Estimation

Jo Tamura, Hiroyuki Arai, Tatsuo Itoh

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

A null-steering antenna with a high-impedance surface (HIS) to improve angle-of-arrival (AoA) estimation is designed and experimentally demonstrated. Because the HIS helps ensure that individual element patterns in an array are identical, the proposed antenna can perform null scanning with a low fluctuation without controlling the amplitude ratio of antenna elements. The simulation results demonstrate that the proposed antenna scans a null in the H-plane in 120° with greater than -30 dB from 2.4 to 2.6 GHz. Furthermore, both the measured S-parameters and element patterns agree well with the simulated results. Overall, the proposed antenna can successfully scan a null greater than -30 dB in 60° at a sampling frequency of 150 MHz.

Original language	English
Pages (from-to)	3269-3276
Number of pages	8
Journal	IEEE Transactions on Antennas and Propagation
Volume	70
Issue number	5
DOIs	https://doi.org/10.1109/TAP.2021.3137469
Publication status	Published - 1 May 2022
Externally published	Yes

Keywords

Angle-of-arrival (AoA) estimation
antenna radiation patterns
dipole antenna
high-impedance surface (HIS)
low profile antennas
null-steering antenna (NSA)

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10.1109/TAP.2021.3137469

Cite this

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title = "High-Impedance Surface-Based Null-Steering Antenna for Angle-of-Arrival Estimation",

abstract = "A null-steering antenna with a high-impedance surface (HIS) to improve angle-of-arrival (AoA) estimation is designed and experimentally demonstrated. Because the HIS helps ensure that individual element patterns in an array are identical, the proposed antenna can perform null scanning with a low fluctuation without controlling the amplitude ratio of antenna elements. The simulation results demonstrate that the proposed antenna scans a null in the H-plane in 120° with greater than -30 dB from 2.4 to 2.6 GHz. Furthermore, both the measured S-parameters and element patterns agree well with the simulated results. Overall, the proposed antenna can successfully scan a null greater than -30 dB in 60° at a sampling frequency of 150 MHz.",

keywords = "Angle-of-arrival (AoA) estimation, antenna radiation patterns, dipole antenna, high-impedance surface (HIS), low profile antennas, null-steering antenna (NSA)",

author = "Jo Tamura and Hiroyuki Arai and Tatsuo Itoh",

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doi = "10.1109/TAP.2021.3137469",

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T1 - High-Impedance Surface-Based Null-Steering Antenna for Angle-of-Arrival Estimation

AU - Tamura, Jo

AU - Arai, Hiroyuki

AU - Itoh, Tatsuo

PY - 2022/5/1

Y1 - 2022/5/1

N2 - A null-steering antenna with a high-impedance surface (HIS) to improve angle-of-arrival (AoA) estimation is designed and experimentally demonstrated. Because the HIS helps ensure that individual element patterns in an array are identical, the proposed antenna can perform null scanning with a low fluctuation without controlling the amplitude ratio of antenna elements. The simulation results demonstrate that the proposed antenna scans a null in the H-plane in 120° with greater than -30 dB from 2.4 to 2.6 GHz. Furthermore, both the measured S-parameters and element patterns agree well with the simulated results. Overall, the proposed antenna can successfully scan a null greater than -30 dB in 60° at a sampling frequency of 150 MHz.

AB - A null-steering antenna with a high-impedance surface (HIS) to improve angle-of-arrival (AoA) estimation is designed and experimentally demonstrated. Because the HIS helps ensure that individual element patterns in an array are identical, the proposed antenna can perform null scanning with a low fluctuation without controlling the amplitude ratio of antenna elements. The simulation results demonstrate that the proposed antenna scans a null in the H-plane in 120° with greater than -30 dB from 2.4 to 2.6 GHz. Furthermore, both the measured S-parameters and element patterns agree well with the simulated results. Overall, the proposed antenna can successfully scan a null greater than -30 dB in 60° at a sampling frequency of 150 MHz.

KW - Angle-of-arrival (AoA) estimation

KW - antenna radiation patterns

KW - dipole antenna

KW - high-impedance surface (HIS)

KW - low profile antennas

KW - null-steering antenna (NSA)

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High-Impedance Surface-Based Null-Steering Antenna for Angle-of-Arrival Estimation

Abstract

Keywords

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