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Compact_Integrated_Antennas

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Compact_Integrated_AntennasFreescale Semiconductor Application Note

Document Number: AN2731 Rev. 1.4, 07/2006

Compact Integrated Antennas
Designs and Applications for the MC1319x, MC1320x, and MC1321x

1

Introduction

Contents
1 2 3 4 5 6 7 8 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Antenna Terms . . . . . . . . . . . . . . . . . . . . . . . . 2 Basic Antenna Theory . . . . . . . . . . . . . . . . . . 2 Impedance Matching . . . . . . . . . . . . . . . . . . . 6 Miniaturization Trade-offs . . . . . . . . . . . . . . 12 Potential Issues . . . . . . . . . . . . . . . . . . . . . . 13 Recommended Antenna Designs . . . . . . . . 14 Design Examples . . . . . . . . . . . . . . . . . . . . . 15

Good antenna design is a critical factor in obtaining good range and stable throughput in a wireless
Compact_Integrated_Antennas
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