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2.4 GHz Coupled-Line Bandpass Filter

Analytical design, ADS optimization, PCB implementation and VNA measurement.

2.4 GHz Coupled-Line Bandpass Filter

Design workflow

The 2.4 GHz coupled-line band-pass filter was developed from analytical calculation through simulation and physical measurement. Even- and odd-mode quantities were calculated in MATLAB, followed by implementation in Keysight ADS. The filter was then tuned and optimized before fabrication and VNA characterization.

MATLAB even/odd-mode calculation→ADS simulation→Tuning→Optimization→Fabrication→VNA S11 / S21
The available render is an earlier design image labeled 3 GHz; the final project center frequency is 2.4 GHz. It is kept here only as a design-stage visual until final PCB/measurement images are added.

Gallery

Early coupled-line design render