Microwave Ring Circuits and Related Structures (Hardcover)

Description:

The definitive text on microwave ring circuits–now better than ever

For the past three decades, the ring resonator has been widely used in such applications as measurements, filters, oscillators, mixers, couplers, power dividers/combiners, antennas, and frequency-selective surfaces, to name just a few. The field has continued to expand, with many new analyses, models, and applications recently reported.

Microwave Ring Circuits and Related Structures has long been the only text fully dedicated to the treatment of ring resonators. The second edition has been thoroughly revised to reflect the most current developments in the field. In addition to updating all the original material, the authors have added extensive new coverage on:

• A universal model for both rectangular and circular ring configurations
• Applications of ring structures for all types of planar circuits
• A new transmission line analysis
• An abundance of new applications in bandpass and bandstop filters, couplers, oscillators, and antennas

While retaining all the features that made the original text so useful to both students and teachers in the field, the second edition seeks to introduce the analysis and models of ring resonators and to apply them to both the old and the new applications, including microstrip, slotline, coplanar waveguide, and waveguide transmission lines. Based on dissertations and papers published by graduate students, scholars, and research associates at A&M University, Microwave Ring Circuits and Related Structures, Second Edition is sure to be a valuable addition to both engineering classrooms and research libraries in the field.

 

 

Table of Contents:

Preface.

1 Introduction.

1.1 Background and Applications.

1.2 Transmission Lines and Waveguides.

1.3 Organization of the Book.

2 Analysis and Modeling of Ring Resonators.

2.1 Introduction.

2.2 Simple Model.

2.3 Field Analyses.

2.3.1 Magnetic-Wall Model.

2.3.2 Degenerate Modes of the Resonator.

2.3.3 Mode Chart for the Resonator.

2.3.4 Improvement of the Magnetic-Wall Model.

2.3.5 Simplified Eigenequation.

2.3.6 A Rigorous Solution.

2.4 Transmission-Line Model.

2.4.1 Coupling Gap Equivalent Circuit.

2.4.2 Transmission-Line Equivalent Circuit.

2.4.3 Ring Equivalent Circuit and Input Impedance.

2.4.4 Frequency Solution.

2.4.5 Model Verification.

2.4.6 Frequency Modes for Ring Resonators.

2.4.7 An Error in Literature for One-Port Ring Circuit.

2.4.8 Dual Mode.

2.5 Ring Equivalent Circuit in Terms of G, L, C 35

2.5.1 Equivalent Lumped Elements for Closed- and Open-Loop Microstrip Ring Resonator.

2.5.2 Calculated and Experimental Results.

2.6 Distributed Transmission-Line Model.

2.6.1 Microstrip Dispersion.

2.6.2 Effect of Curvature.

2.6.3 Distributed-Circuit Model.

References.

3 Modes, Perturbations, and Coupling Methods of Ring Resonators.

3.1 Introduction.

3.2 Regular Resonant Modes.

3.3 Forced Resonant Modes.

3.4 Split Resonant Modes.

3.4.1 Coupled Split Modes.

3.4.2 Local Resonant Split Modes.

3.4.3 Notch Perturbation Split Modes.

3.4.4 Patch Perturbation Split Modes.

3.5 Further Study of Notch Perturbations.

3.6 Split (Gap) Perturbations.

3.7 Coupling Methods for Microstrip Ring Resonators.

3.8 Effects of Coupling Gaps.

3.9 Enhanced Coupling.

3.10 Uniplanar Ring Resonators and Coupling Methods.

3.11 Perturbations in Uniplanar Ring Resonators.

References.

4 Electronically Tunable Ring Resonators.

4.1 Introduction.

4.2 Simple Analysis.

4.3 Varactor Equivalent Circuit.

4.4 Input Impedance and Frequency Response of the Varactor-Tuned Microstrip Ring Circuit.

4.5 Effects of the Package Parasitics on the Resonant Frequency.

4.6 Experimental Results for Varactor-Tuned Microstrip Ring Resonators.

4.7 Double Varactor-Tuned Microstrip Ring Resonator.

4.8 Varactor-Tuned Uniplanar Ring Resonators.

4.9 Piezoelectric Transducer Tuned Microstrip Ring Resonator.

References.

5 Electronically Switchable Ring Resonators.

5.1 Introduction.

5.2 PIN Diode Equivalent Circuit.

5.3 Analysis for Electronically Switchable Microstrip Ring Resonators.

5.4 Experimental and Theoretical Results for Electronically Switchable Microtrip Ring Resonators.

5.5 Varactor-Tuned Switchable Microstrip Ring Resonators.

References.

6 Measurement Applications Using Ring Resonators.

6.1 Introduction.

6.2 Dispersion, Dielectric Constant, and Q-Factor Measurements.

6.3 Discontinuity Measurements.

6.4 Measurements Using Forced Modes or Split Modes.

6.4.1 Measurements Using Forced Modes.

6.4.2 Measurements Using Split Modes.

References.

7 Filter Applications.

7.1 Introduction.

7.2 Dual-Mode Ring Bandpass Filters.

7.3 Ring Bandstop Filters.

7.4 Compact, Low Insertion Loss, Sharp Rejection, and Wideband Bandpass Filters.

7.5 Ring Slow-Wave Bandpass Filters.

7.6 Ring Bandpass Filters with Two Transmission Zeros.

7.7 Pizoeletric Transducer-Tuned Bandpass Filters.

7.8 Narrow Band Elliptic-Function Bandpass Filters.

7.9 Slotline Ring Filters.

7.10 Mode Suppression.

References.

8 Ring Couplers.

8.1 Introduction.

8.2 180° Rat-Race Hybrid-Ring Couplers.

8.2.1 Microstrip Hybrid-Ring Couplers.

8.2.2 Coplanar Waveguide-Slotline Hybrid-Ring Couplers.

8.2.3 Asymmetrical Coplanar Strip Hybrid-Ring Couplers.

8.3 180° Reverse-Phase Back-to-Back Baluns.

8.4 180° Reverse-Phase Hybrid-Ring Couplers.

8.4.1 CPW-Slotline 180° Reverse-Phase Hybrid-Ring Couplers.

8.4.2 Reduced-Size Uniplanar 180° Reverse-Phase Hybrid-Ring Couplers.

8.4.3 Asymmetrical Coplanar Strip 180° Reverse-Phase Hybrid-Ring Couplers.

8.5 90° Branch-Line Couplers.

8.5.1 Microstrip Branch-Line Couplers.

8.5.2 CPW-Slotline Branch-Line Couplers.

8.5.3 Asymmetrical Coplanar Strip Branch-Line Couplers.

References.

9 Ring Magic-T Circuits.

9.1 Introduction.

9.2 180° Reverse-Phase CPW-Slotline T-Junctions.

9.3 CPW Magic-Ts.

9.4 180° Double-Sided Slotline Ring Magic-Ts.

9.5 180° Uniplanar Slotline Ring Magic-Ts.

9.6 Reduced-Size Uniplanar Magic-Ts.

References.

10 Waveguide Ring Resonators and Filters.

10.1 Introduction.

10.2 Waveguide Ring Resonators.

10.2.1 Regular Resonant Modes.

10.2.2 Split Resonant Modes.

10.2.3 Forced Resonant Modes.

10.3 Waveguide Ring Filters.

10.3.1 Decoupled Resonant Modes.

10.3.2 Single-Cavity Dual-Mode Filters.

10.3.3 Two-Cavity Dual-Mode Filters.

References.

11 Ring Antennas and Frequency-Selective Surfaces.

11.1 Introduction.

11.2 Ring Antenna Circuit Model.

11.2.1 Approximations and Fields.

11.2.2 Wall Admittance Calculation.

11.2.3 Input Impedance Formulation for the Dominant Mode.

11.2.4 Other Reactive Terms.

11.2.5 Overall Input Impedance.

11.2.6 Computer Simulation.

11.3 Circular Polarization and Dual-Frequency Ring Antennas.

11.4 Slotline Ring Antennas.

11.5 Active Antennas Using Ring Circuits.

11.6 Frequency-Selective Surfaces.

11.7 Reflectarrays Using Ring Resonators.

References.

12 Ring Mixers, Oscillators, and Other Applications.

12.1 Introduction.

12.2 Rat-Race Balanced Mixers.

12.3 Slotline Ring Quasi-Optical Mixers.

12.4 Ring Oscillators.

12.5 Microwave Optoelectronics Applications.

12.6 Metamaterials Using Split-Ring Resonators.

References.

Index.

描述：
過去三十年來，環形諧振器已被廣泛應用於測量、濾波器、振盪器、混頻器、耦合器、功率分配器/合併器、天線和頻率選擇性表面等應用中。該領域不斷擴大，最近報導了許多新的分析、模型和應用。

《微波環形電路及相關結構》一書長期以來一直是唯一一本完全專注於環形諧振器處理的書籍。第二版已經經過全面修訂，以反映該領域最新的發展。除了更新所有原始材料外，作者還增加了以下廣泛的新內容：

- 矩形和圓形環形配置的通用模型
- 對所有類型的平面電路應用環形結構
- 新的傳輸線分析
- 大量新的應用，包括帶通和帶阻濾波器、耦合器、振盪器和天線

第二版保留了原書對學生和教師都非常有用的所有特點，並旨在介紹環形諧振器的分析和模型，並將其應用於新舊應用，包括微帶線、槽線、共面波導和波導傳輸線。《微波環形電路及相關結構》第二版基於A＆M大學的研究生、學者和研究助理發表的論文和論文，無疑將成為工程教室和該領域研究圖書館的寶貴資源。

目錄：
前言
1 引言
1.1 背景和應用
1.2 傳輸線和波導
1.3 本書組織
2 環形諧振器的分析和建模
2.1 引言
2.2 簡單模型
2.3 场分析
2.3.1 磁壁模型
2.3.2 諧振器的退化模式
2.3.3 諧振器的模式圖
2.3.4 改進的磁壁模型
2.3.5 簡化特徵方程
2.3.6 嚴格解
2.4 傳輸線模型
2.4.1 耦合間隙等效電路
2.4.2 傳輸線等效電路
2.4.3 環等效電路和輸入阻抗
2.4.4 頻率解
2.4.5 模型驗證
2.4.6 環形諧振器的頻率模式
2.4.7 一端口環形電路文獻中的錯誤
2.4.8 雙模式
2.5 以G、L、C為基礎的環等效電路
2.5.1 封閉和開環微帶環形諧振器的等效集中元件
2.5.2 計算和實驗