基于HFSS的側(cè)饋矩形微帶天線仿真與設(shè)計(jì)

2萬(wàn)字
自己原創(chuàng)的畢業(yè)論文，已經(jīng)通過(guò)校內(nèi)系統(tǒng)檢測(cè)，重復(fù)率低，僅在本站獨(dú)家出售，大家放心下載使用

摘要 微帶天線由于其重量輕、剖面小、易共形、設(shè)計(jì)靈活、成本低且易和等電路相集成等優(yōu)點(diǎn)得到了越來(lái)越廣泛的應(yīng)用，比如導(dǎo)彈制導(dǎo)、雷達(dá)、衛(wèi)星通信等方面。Ansoft HFSS 是世界上第一個(gè)商業(yè)化的三維結(jié)構(gòu)電磁場(chǎng)仿真軟件，廣泛應(yīng)用于無(wú)線和有線通信、計(jì)算機(jī)、衛(wèi)星、雷達(dá)、半導(dǎo)體和微波集成電路、航空航天等領(lǐng)域。隨著技術(shù)的進(jìn)步，在不同領(lǐng)域?qū)τ谔炀€的各個(gè)要求越來(lái)越高，所以對(duì)微帶天線的尺寸與性能的分析有著重要的作用。本課題的研究?jī)?nèi)容主要是基于微帶貼片天線結(jié)構(gòu)，使用HFSS的優(yōu)化功能進(jìn)行微波工程設(shè)計(jì)，仿真及優(yōu)化2.45GHz頻段的側(cè)饋矩形微帶天線，并對(duì)其特性進(jìn)行分析。
本文在論述了微帶天線基本理論和結(jié)構(gòu)參數(shù)指標(biāo)的基礎(chǔ)上，重點(diǎn)對(duì)諧振頻率為ISM頻段2.45GHz的側(cè)饋矩形微帶天線進(jìn)行了分析，主要分析的結(jié)構(gòu)參數(shù)有輻射貼片長(zhǎng)度、1/4波長(zhǎng)阻抗轉(zhuǎn)換器的寬度和微帶線的寬度。在了解了HFSS軟件的天線仿真功能和設(shè)計(jì)流程的基礎(chǔ)上，對(duì)所設(shè)計(jì)的側(cè)饋矩形微帶天線進(jìn)行了電磁仿真分析，并對(duì)其結(jié)構(gòu)進(jìn)行了優(yōu)化，得到性能良好的側(cè)饋矩形微帶天線的模型結(jié)構(gòu)。研究表明，本文設(shè)計(jì)的天線具有良好的性能。

關(guān)鍵詞 微帶天線 側(cè)饋矩形 HFSS 分析


Simulation and Design of Side-fed Rectangular Microstrip Antenna Based on HFSS
Abstract Microstrip antenna has been more widely used, such as missile guidance, radar, satellite communications, and so on, due to its light weight, small profile, easy to conformal, flexible design, low cost and easy integration and other circuits, etc. Ansoft HFSS is the world's first commercial three-dimensional structure of electromagnetic simulation software, widely used in wireless and wired communications, computers, satellites, radar, microwave integrated circuits and semiconductors, aerospace and other fields.As technology advances,the requirementsin different fieldsfor eachantenna isincreasing,so theanalysis ofthe sizeand performanceofthe microstripantennahas an importantrole. The main contents of this paper is based on microstrip patch antenna structure using HFSS optimization features microwave engineering design, simulation and optimization 2.45GHz band side fed rectangular microstrip antenna and analyze its characteristics.
This paper discusses the basic theory and basic microstrip antenna structure parameters of indicators, focusing on the resonant frequency were analyzed for the 2.45GHz ISM band side fed rectangular microstrip antenna, the main analysis of the structural parameters of radiation patch length, 1 / width 4 wavelength impedance converter and the width of the microstrip line. To understand the basis of HFSS antenna simulation software functionality and design process, the design of the side-fed rectangular microstrip antenna electromagnetic simulation, and its structure is optimized to obtain good performance side-fed rectangular microstrip antenna the model structure. Studies show that the proposed antenna has good performance.

KEY WORDS microstrip antenna side fed rectangular HFSS analyze

目 錄
第一章 緒論 1
1.1 微帶天線的發(fā)展[1] 1
1.2 微帶天線的定義和結(jié)構(gòu) 1
1.3 微帶天線的優(yōu)缺點(diǎn) 1
1.4本文主要研究?jī)?nèi)容 2
第二章 側(cè)饋矩形微帶天線基本原理 4
2.1引言 4
2.2天線基本理論[4] 4
2.2.1天線的作用[5] 4
2.2.2天線的分類(lèi)[6] 5
2.2.3衡量天線的性能指標(biāo) 6
2.3微帶天線的定義和參數(shù) 8
2.4微帶天線的常見(jiàn)分析方法[13-15] 9
2.4.1傳輸線模型理論 10
2.4.2腔模理論 10
2.4.3全波分析理論 12
2.5微帶天線的輻射原理[19] 12
2.6 微帶天線的激勵(lì)方法 14
2.7 本章小結(jié) 15
第三章 HFSS仿真分析方法 16
3.1 Ansoft HFSS 的概述 16
3.2 HFSS的特點(diǎn) 17
3.3 HFSS界面說(shuō)明 18
3.4設(shè)置解算類(lèi)型 21
3.5邊界條件 22
3.6本章小結(jié) 23
第四章 側(cè)饋矩形微帶天線仿真分析與優(yōu)化 24

4.1 側(cè)饋矩形微帶天線的模型結(jié)構(gòu) 24
4.2 側(cè)饋矩形微帶天線的建模和仿真 25
4.2.1 HFSS建模過(guò)程 25
4.2.2 側(cè)饋矩形微帶天線的仿真結(jié)果 28
4.3不同的結(jié)構(gòu)參數(shù)對(duì)側(cè)饋矩形微帶天線性能的影響 29
4.3.1輻射貼片長(zhǎng)度L0對(duì)天線性能的影響 29
4.3.2 1/4波長(zhǎng)阻抗轉(zhuǎn)換器的寬度W1對(duì)天線性能的影響 30
4.3.3 微帶線的寬度W2對(duì)天線性能的影響 30
4.4 側(cè)饋矩形微帶天線的優(yōu)化設(shè)計(jì) 31
4.5本章小結(jié) 34
第五章 結(jié)論與展望 35
致 謝 36
參考文獻(xiàn) 37