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Broadband Planar Antennas: Design and Applications

ISBN: 978-0-470-87174-4
Hardcover
264 pages
February 2006
List Price: US $171.50
Government Price: US $98.52
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Foreword.

Preface.

Acknowledgements.

1 Planar Radiators.

1.1 Introduction.

1.2 Bandwidth Definitions.

1.2.1 Impedance Bandwidth.

1.2.2 Pattern Bandwidth.

1.2.3 Polarization or Axial-ratio Bandwidth.

1.2.4 Summary.

1.3 Planar Antennas.

1.3.1 Suspended Plate Antennas.

1.3.2 Bent Plate Antennas.

1.4 Overview of this Book.

References.

2 Broadband Microstrip Patch Antennas.

2.1 Introduction.

2.2 Important Features of Microstrip Patch Antennas.

2.2.1 Patch Shapes.

2.2.2 Substrates.

2.2.3 Feeding Structures.

2.2.4 Example: Rectangular Microstrip Patch Antennas.

2.3 Broadband Techniques.

2.3.1 Lowering the Q.

2.3.2 Using an Impedance Matching Network.

2.3.3 Case Study: Microstrip Patch Antenna with Impedance Matching Stub.

2.3.4 Introducing Multiple Resonances.

2.3.5 Case Study: Microstrip Patch Antenna with Stacked Elements.

References.

3 Broadband Suspended Plate Antennas.

3.1 Introduction.

3.2 Techniques to Broaden Impedance Bandwidth.

3.2.1 Capacitive Load.

3.2.2 Slotted Plates.

3.2.3 Case Study: SPA with an -shaped Slot.

3.2.4 Electromagnetic Coupling.

3.2.5 Nonplanar Plates.

3.2.6 Vertical Feed Sheet.

3.3 Techniques to Enhance Radiation Performance.

3.3.1 Radiation Characteristics of SPAs.

3.3.2 SPA with Dual Feed Probes.

3.3.3 Case Study: Center-concaved SPA with Dual Feed Probes.

3.3.4 SPA with Half-wavelength Probe-fed Strip.

3.3.5 SPA with Probe-fed Center Slot.

3.3.6 Case Study: Center-fed SPA with Double L-shaped Probes.

3.3.7 SPA with Slots and Shorting Strips.

3.4 Arrays with Suspended Plate Elements.

3.4.1 Mutual Coupling between Two Suspended Plate Elements.

3.4.2 Reduced-size Array above Double-tiered Ground Plane.

References.

4 Planar Inverted-L/F Antennas.

4.1 Introduction.

4.2 The Inverted-L/F Antenna.

4.3 Broadband Planar Inverted-F/L Antenna.

4.3.1 Planar Inverted-F Antenna.

4.3.2 Planar Inverted-L Antenna.

4.4 Case Studies.

4.4.1 Handset Antennas.

4.4.2 Laptop Computer Antennas.

References.

5 Planar Monopole Antennas and Ultra-wideband Applications.

5.1 Introduction.

5.2 Planar Monopole Antenna.

5.2.1 Planar Bi-conical Structure.

5.2.2 Planar Monopoles.

5.2.3 Roll Monopoles.

5.2.4 EMC Feeding Methods.

5.3 Planar Antennas for UWB Applications.

5.3.1 Ultra-wideband Technology.

5.3.2 Considerations for UWB Antennas and Source Pulses.

5.3.3 Planar UWB Antenna and Assessment.

5.4 Case Studies.

5.4.1 Planar UWB Antenna Printed on a PCB.

5.4.2 Planar UWB Antenna Embedded into a Laptop Computer.

5.4.3 Planar Directional UWB Antenna.

References.

Index

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