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CLC number: TN82

On-line Access: 2023-05-06

Received: 2022-10-16

Revision Accepted: 2023-05-06

Crosschecked: 2023-02-02

Cited: 0

Clicked: 911

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Juhua LIU

https://orcid.org/0000-0003-4725-6241

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Frontiers of Information Technology & Electronic Engineering  2023 Vol.24 No.4 P.567-581

http://doi.org/10.1631/FITEE.2200473


An array of two periodic leaky-wave antennas with sum and difference beam scanning for application in target detection and tracking


Author(s):  Mianfeng HUANG, Juhua LIU

Affiliation(s):  School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510006, China; more

Corresponding email(s):   liujh33@mail.sysu.edu.cn

Key Words:  Antenna, Leaky-wave antenna (LWA), Substrate-integrated waveguide (SIW), Sum and difference beam, Target detection and tracking


Mianfeng HUANG, Juhua LIU. An array of two periodic leaky-wave antennas with sum and difference beam scanning for application in target detection and tracking[J]. Frontiers of Information Technology & Electronic Engineering, 2023, 24(4): 567-581.

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Abstract: 
An array of two substrate-integrated waveguide (SIW) periodic leaky-wave antennas (LWAs) with sum and difference beam scanning is proposed for application in target detection and tracking. The array is composed of two periodic LWAs with different periods, in which each LWA generates a narrow beam through the n=-1 space harmonic. Due to the two different periods for the two LWAs, two beams with two different directions can be realized, which can be combined into a sum beam when the array is fed in phase or into a difference beam when the array is fed 180° out of phase. The array integrated with 180° hybrid is designed, fabricated, and measured. Measurement results show that the sum beam can reach a gain up to 15.9 dBi and scan from -33.4° to 20.8°. In the scanning range, the direction of the null in the difference beam is consistent with the direction of the sum beam, with the lowest null depth of -40.8 dB. With the excellent performance, the antenna provides an alternative solution with low complexity and low cost for target detection and tracking.

一种应用于目标检测和跟踪的和差波束扫描的双周期漏波天线阵列

黄棉烽1,2,刘菊华1,2
1中山大学电子与信息工程学院,中国广州市,510006
2中山大学广东省光电信息处理芯片与系统重点实验室,中国广州市,510006
摘要:本文提出一种两个基片集成波导(SIW)周期性漏波天线(LWA)组成的天线阵列,该阵列具有和差波束扫描功能,可应用于目标检测和跟踪。阵列由两个具有不同周期的漏波天线组成,其中每个漏波天线通过n=-1空间谐波辐射产生窄波束。这两个漏波天线因为具有不同的周期所以可产生两个不同方向的波束。当对阵列进行同相馈电时,这两个波束将组合成和波束;当对阵列进行反相馈电时,两个波束则组合成差波束。我们设计了集成180°混合网络的阵列,并对其加工与实测。实测结果显示阵列的和波束增益最高可达15.9 dBi,和波束扫描范围为-33.4°至20.8°。在扫描范围内,差波束中的零点方向与和波束的辐射方向角一致,最低的零点深度为-40.8 dB。实测结果表明该天线阵列具有优异的性能,能够为目标检测和跟踪应用提供一种低复杂度和低成本的替代解决方案。

关键词:天线;漏波天线(LWA);基片集成波导(SIW);和差波束;目标检测和跟踪

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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