2.45GHz to 2.85GHz VCO Design with Infineon BFP420 Wideband Silicon NPN RF Bipolar Transistor
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Part I: Introduction I designed two preamplifiers which can be added to any application needs additional gain. The two designs have the same PCB layout but different IC U1 which is shown in the Figure 1. The PCB is shown in the Figure 2. Figure 1: Schematic of the Preamplifier (ADL5544 for fixed gain of
Preamplifier 30 MHz to 6 GHz Read More »
Part I: Understanding the RF Spectrum Measurements The Spectrum Analyzer has a bandpass filter (IF filter) which is used as the “window” for detecting signals. The bandpass filter’s bandwidth is also called the resolution bandwidth(RBW) of the analyzer and can be changed by the user [2]. For example, the Figure 1 shows the Spectrum of
Channel power measurements Read More »