Vor Ort
Merkzettel Warenkorb
  • Produktbild: Defected Ground Structure (DGS) Based Antennas
  • Produktbild: Defected Ground Structure (DGS) Based Antennas

Defected Ground Structure (DGS) Based Antennas Design Physics, Engineering, and Applications

155,99 €

inkl. gesetzl. MwSt., Versandkostenfrei

Beschreibung

Produktdetails

Einband

Gebundene Ausgabe

Erscheinungsdatum

06.12.2022

Verlag

John Wiley & Sons

Seitenzahl

320

Maße (L/B/H)

23,5/15,7/2,2 cm

Gewicht

618 g

Auflage

1. Auflage

Sprache

Englisch

ISBN

978-1-119-89618-0

Beschreibung

Produktdetails

Einband

Gebundene Ausgabe

Erscheinungsdatum

06.12.2022

Verlag

John Wiley & Sons

Seitenzahl

320

Maße (L/B/H)

23,5/15,7/2,2 cm

Gewicht

618 g

Auflage

1. Auflage

Sprache

Englisch

ISBN

978-1-119-89618-0

Herstelleradresse

Libri GmbH
Europaallee 1
36244 Bad Hersfeld
DE

Email: gpsr@libri.de

Noch keine Bewertungen vorhanden

Verfassen Sie die erste Bewertung zu diesem Artikel

Helfen Sie anderen Kundinnen und Kunden durch Ihre Meinung.

Kundinnen und Kunden meinen

Bewertungen (0)
Die Leseprobe wird geladen.
  • Produktbild: Defected Ground Structure (DGS) Based Antennas
  • Produktbild: Defected Ground Structure (DGS) Based Antennas
  • Preface xi
     
    Acknowledgments xv
     
    1 Introduction to DGS: The Concept and Evolution 1
     
    1.1 Introduction 1
     
    1.2 Evolution of DGS 2
     
    1.3 Definition and Basic Concept 5
     
    1.4 Geometries and Classification 6
     
    1.4.1 Unit Cell DGS 7
     
    1.4.1.1 Dumbbell-Shaped DGS 7
     
    1.4.1.2 Variations of Dumbbell-Shaped DGS 8
     
    1.4.1.3 Spiral-Shaped DGS 12
     
    1.4.1.4 Variations of Spiral-Shaped DGS 13
     
    1.4.1.5 H-Shaped DGS 14
     
    1.4.1.6 U- and V-Shaped DGSs 15
     
    1.4.1.7 Ring-Shaped DGS 15
     
    1.4.1.8 Other DGS Geometries 16
     
    1.4.1.9 Tunable DGS Geometries 18
     
    1.4.2 Periodic Uniform DGS 18
     
    1.4.3 Periodic Nonuniform DGS 20
     
    1.4.4 Asymmetric DGS 22
     
    1.5 An Outline of Applications 23
     
    References 24
     
    2 Theoretical Analysis and Modeling 35
     
    2.1 Introduction 35
     
    2.2 LC and RLC Modeling 35
     
    2.2.1 Equivalent Circuit Parameter Extraction 37
     
    2.2.2 Utilization of the Extracted LC for n-Pole DGS Filter Design 41
     
    Trim Size: 6in x 9in Single Column Guha896180 ftoc.tex V1 - 10/10/2022 8:10pm Page vi
     
    [1]
     
    [1] [1]
     
    [1]
     
    vi Contents
     
    2.2.3 RLC Circuit Modeling 43
     
    2.3 LC Circuit Modeling: Variants and Improvements 44
     
    2.3.1 Pi-Type Equivalent Circuit 44
     
    2.3.2 Modeling of Spiral DGS with Periodic Resonance 46
     
    2.3.3 Modeling of DGS with Aperiodic Stopbands 51
     
    2.3.4 Some Modifications in Modeling Approach 54
     
    2.4 Transmission Line Modeling 55
     
    2.5 Quasistatic Modeling 59
     
    2.5.1 Microstrip Gap Model 62
     
    2.5.2 Microstrip Cross Junction Model 63
     
    2.5.3 Modeling of the Rest Current Paths 64
     
    2.6 Modeling of Isolated DGS for Antenna applications 66
     
    2.7 Comments on the Modeling Techniques 68
     
    References 69
     
    3 DGS for Printed Antenna Feeds 73
     
    3.1 Introduction 73
     
    3.2 Impedance Matching of Antenna Feed Lines 73
     
    3.3 Controlling the Harmonics in Printed Antennas 75
     
    3.3.1 Suppression of Second Harmonic (2f 0) 77
     
    3.3.2 Suppression up to Third Harmonic (3f 0) 79
     
    3.3.3 Suppression up to Fourth Harmonic (4f 0) 84
     
    3.4 Filtering Antenna Using DGS 86
     
    3.5 Improved Isolation Between Antenna Ports 88
     
    3.6 Improvement of Antenna Bandwidth 92
     
    3.6.1 Lowering the Q-Factor 92
     
    3.6.2 Adjusting Higher Resonances 94
     
    3.7 Antenna Miniaturization 94
     
    References 98
     
    4 DGS to Control Orthogonal Modes in a Microstrip Patch for
     
    Cross-Pol Reduction 103
     
    4.1 Introduction 103
     
    4.2 Understanding of Radiating Modes in Microstrip Patches 103
     
    4.2.1 Rectangular Patch 104
     
    4.2.2 Circular Patch 106
     
    4.3 WhatWere the Known Methods to Deal with the Cross-Polarized
     
    Fields? 110
     
    4.4 Suppression of Cross-Polarized Fields by DGS Integration Technique:
     
    Coax-Fed Patches 112
     
    Trim Size: 6in x 9in Single Column Guha896180 ftoc.tex V1 - 10/10/2022 8:10pm Page vii
     
    [1]
     
    [1] [1]
     
    [1]
     
    Contents vii
     
    4.4.1 Controlling the OCDM and Cross-Polarized Radiations in
     
    E-Plane 112
     
    4.4.2 Controlling of TM21 Mode and Cross-Polarized Radiations in Circular
     
    and Elliptical Patches 113
     
    4.4.3 Controlling TM02 Mode in a Rectangular Patch and H-Plane
     
    Cross-Polarized Radiations 116
     
    4.4.4 Visualization of the Modal Fields and the Effect of the DGSs 117
     
    4.4.5 Universal DGS: