寬頻反射式陣列天線

Wideband Reflectarray Antenna

許閎迪(Hung-Di Hsu)

指導教授 ： 紀佩綾

國立交通大學/電機學院/電信工程系所/碩士(2020年)

摘要

本論文演示了一涵蓋X band, Ku band頻段之寬頻反射式陣列天線，結
第一章為緒論，第二章為作做為饋入之號角天線的基本介紹，第三章為天線基本理論以及反射式陣列天線的基本介紹，而第四章為本論文所提出之寬頻反射式陣列天線的設計理論與結果，提出採用寬頻天線單元加上雙層結構及多頻頻率合成的技巧，達到一涵蓋X band , Ku band 之指向性反射式陣列天線，兩組反射式陣列天線分別分布於兩層介質的上層，而上層天線結構大小為下層天線結構大小的0.7倍，下層介質底面則為接地面，製作成15×15之天線陣列反射面，並透過號角天線作為饋入天線，實現此寬頻雙層反射式陣列天線，並將結構實現於雙層RT5800 62 mil 基板。

關鍵字

反射式陣列天線

並列摘要

This paper demonstrates a wideband reflectarray antenna covering the X-band, Ku band, which combined the a dual-layer dual-resonance antenna unit and frequency synthesis method to achieve a 3dB Gain Bandwidth of around 50%.
The first chapter is the introduction, the second chapter is the basic introduction of the horn antenna as feeding, the third chapter is the basic theory of the antenna and the basic concept of the reflectarray antenna, and the fourth chapter is the broadband reflectarray proposed in this paper. The design theory and results of the reflectarray propose a technique of using a wideband antenna unit plus a two-layer structure and multi-frequency synthesis to achieve a directional reflectarray antenna covering X band and Ku band. The elements lies on the upper layer of the two layers of substrate, and the upper antenna structure is 0.7 times the size of the lower antenna structure, and the bottom surface of the lower layer is the ground plane, which is made into a 15×15 antenna array reflecting surface, and is transmitted through the horn antenna as a feeding antenna. This broadband double-layer reflectarray antenna is implemented on a dual-layer RT5800 62 mil substrate.

並列關鍵字

Reflectarray

參考文獻

[1] G. Chen,Y. Jiao, G. Zhao, “ A Reflectarray for Generating Wideband Circularly Polarized Orbital Angular Momentum Vortex Wave,” IEEE Antennas and Wireless Propagation Letters, VOL. 18, NO. 1, P.182-186, Jan. 2019

[2] Y. Mao, C. Wang, F. Yang , A. Z. Elsherbeni , “ A single-layer broad-band reflectarray design using dual-frequency phase synthesis method,” 2012 Asia Pacific Microwave Conference Proceedings , 2A5-03 , Dec. 4-7, 2012

[3] R. Deng , S. Xu , F. Yang , M. Li , “ A Single-Layer High-Efficiency Wideband Reflectarray Using Hybrid Design Approach,” IEEE Antennas and Wireless Propagation Letters , VOL. 16 , P884-887 , 2017

[4] L. Guo, P. Tan, T. Chio , “ A wideband folded reflectarray using single-layered sub-wavelength elements,” 2016 10th European Conference on Antennas and Propagation (EuCAP) , 2016

[5] Q. Chen, S. Qu, X. Zhang, M. Xia, “ Low-Profile Wideband Reflectarray by Novel Elements With Linear Phase Response,” IEEE Antennas and Wireless Propagation Letters , VOL. 11, P1545-1547 , 2012