AN2731_Compact Integrated AntennasFreescale Semiconductor Application NoteDocument Number: AN2731 Rev. 1.4, 07/2006Compact Integrated AntennasDesigns and Applications for the MC1319x, MC1320x, and MC1321x1IntroductionContents1 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 . . . . . . . . . . . . . . . . . . . . . 15Good antenna design is a critical factor in obtaining good range and stable throughput in a wireless ……
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