Frequency
Low Cost Coupling Methods for RF Power Detectors Replace Directional Couplers
Minimizing size and cost is crucial in wireless applications such as cellular telephones. The key components in a typical GSM cellular telephone RF transmit channel consist of an RF power amplifier, power controller, directional coupler and diplexer. Some of the more recent RF power amplifiers incorporate a directional coupler in their module, reducing component count and board area.
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Analog Devices Inc.
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