Printed Antennas

4 Band Hopping in Printed Antennas

Dr. Surendra Kumar Gupta

Ambedkar Institute of Technology, Delhi

Contents

4.1     Introduction

4.2     Theory of MOS Loaded CMSA with an Airgap

4.2.1     Metal Oxide Semiconductor

4.2.2     Double MOS Loaded Circular Microstrip Antenna with an Airgap

4.2.3     Specifications of Double MOS Loaded CMSA with an Airgap

4.2.4     Radiation Pattern of CMSA

4.2.5     Properties of Double MOS Loaded CMSA with an Airgap

4.3     BST Varactor Diode Loaded Stacked CMSA

4.3.1     Analysis of Upper Patch

4.3.2     Analysis of Lower Patch

4.3.3     Stacked Circular Patch

4.3.4     BST Varactor Diode Loaded Stacked Microstrip Patch

4.3.5     Radiation Pattern of Stacked CMSA

4.3.6     Specifications of BST Varactor Diode Loaded ...