Chapter 14 Microstrip antennas Contents 1 Introduction 2

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Chapter 14. Microstrip antennas

Chapter 14. Microstrip antennas

Contents 1. Introduction 2. Rectangular patch 3. Circular patch 4. Quality factor, Bandwidth, and

Contents 1. Introduction 2. Rectangular patch 3. Circular patch 4. Quality factor, Bandwidth, and efficiency 5. Input impedance 6. Coupling 7. Circular polarization 8. Arrays and feed networks

Rectangular & circular patch E-field distribution Current distribution

Rectangular & circular patch E-field distribution Current distribution

Rectangular Patch (9) u 지향성 (Directivity) • Single slot (k 0 h<<1) v single

Rectangular Patch (9) u 지향성 (Directivity) • Single slot (k 0 h<<1) v single slot의 지향성은 substrate 의 높이 h와 무관하다. 근사식 : • Two slot (k 0 h<<1) 근사식 : 지향성(Directivity)

급전 회로 (Feeding Network) u series-feed network • fixed beam 이나 주파수 변화에 의한

급전 회로 (Feeding Network) u series-feed network • fixed beam 이나 주파수 변화에 의한 스 캐닝 • 단일/이중 편파를 갖는 선형/평판 어레 이 u corporate-feed network • tapered lines, l/4 transformer • scanning phased arrays, multi-beam arrays, shaped-beam arrays • probe feeds, aperture coupling u Cavity Backed • 표면파 문제 개선

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Contents 2 Contents 3 Contents 4 Contents 5Contents 2 Contents 3 Contents 4 Contents 5
TITLE CONTENTS 1 CONTENTS 2 CONTENTS 3 CONTENTSTITLE CONTENTS 1 CONTENTS 2 CONTENTS 3 CONTENTS
CONTENTS 1 CONTENTS 2 CONTENTS 3 CONTENTS 4CONTENTS 1 CONTENTS 2 CONTENTS 3 CONTENTS 4
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SMART ANTENNAS Reham mahmoud Amira aboelnasr CONTENTS INTRODUCTIONSMART ANTENNAS Reham mahmoud Amira aboelnasr CONTENTS INTRODUCTION
SMART ANTENNAS Reham mahmoud Amira aboelnasr CONTENTS INTRODUCTIONSMART ANTENNAS Reham mahmoud Amira aboelnasr CONTENTS INTRODUCTION
CMS Contents Managements System 0 CONTENTS CMS ContentsCMS Contents Managements System 0 CONTENTS CMS Contents
CELL CONTENTS Cell Contents Cell contents with whichCELL CONTENTS Cell Contents Cell contents with which
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