A Compact Ultra-Wideband Multibeam Antenna System

被引：10

作者：

Emadeddin, Ahmad ^{[1
]}

Salari, Mohammad Ali ^{[2
]}

Zoghi, Mahdi ^{[3
]}

Darvazehban, Amin ^{[4
]}

Manoochehri, Omid ^{[5
]}

机构：

[1] Shahed Univ, Elect Engn Dept, Tehran 3319118651, Iran

[2] Rhein Westfal TH Aachen, Dept Phys, D-52074 Aachen, Germany

[3] Iran Univ Sci & Technol, Elect Engn Dept, Tehran 1684613114, Iran

[4] Amirkabir Univ Technol, Elect Engn Dept, Tehran 15914, Iran

[5] Univ Illinois, Dept Elect & Comp Engn, Chicago, IL 60607 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2018年 / 66卷 / 01期

关键词：

Lens; multibeam antennas; UWB antennas; waveguide components; COAXIAL WAVE-GUIDE; ROTMAN LENS; MODE; ARRAY;

D O I：

10.1109/TAP.2017.2776342

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A compact UWB (6-18 GHz) multibeam antenna system is proposed. Design procedures comprising of ridged coaxial waveguide, radome with lens properties, and biconical antenna are presented. A novel UWB feed network consisting of a ridged coaxial waveguide with eight inputs has been designed and optimized to achieve minimum reflections as well as desired radiation pattern over the frequency range of operation. The radiating element is a biconical antenna, redesigned and optimized to meet the requirements for radiation characteristics. Another notable improvement made by our design is to employ a radome, which not only enhances the mechanical stability of the biconical antenna and protects the structure, but also it acts as a lens that improves the directivity of the radiating element. Extensive optimization procedures have been applied to all parts of the antenna system to achieve the desired performance. The whole system has been simulated using HFSS full-wave simulator. The measurement results of the fabricated system are in good agreement with simulations.

引用

页码：125 / 131

页数：7

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