RF Impedance Matching needed

The attached transmit circuit has very high S11 (and VSWR) at frequencies below 100 MHz.

Adjust the values of the L,C shown in the shematic so that it has low VSWR (less than 1.3) and low S11 for the frequencies 60,70,80 MHz.

The needed parameters are:

1. The output impedance at TX1_1 must be 50 ohms.

2. Transmit analogue input impedance 40 ohms

3. Transmit load impedance at the output pins 400 ohms.

Before bidding the Bidder should describe:

1. Which SW or Analytic Method should be used.

2. The reason of high S11 (and VSWR) at frequencies below 100 MHz .

Skills: Electronics, Circuit Design, Engineering, Radio Frequency Engineering, Wireless Radio Frequency Engineering

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About the Employer:
( 1 review ) ANKARA, Turkey

Project ID: #22762792

8 freelancers are bidding on average $216 for this job


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