GHz. The poor match, excess losses, and frequency shift of ϳ0.4 GHz can be attributed to losses due to coaxial connectors, conductor and dielectric losses, impedance mismatch, and fabrication errors, respectively, which were not considered in the simulation. No attempt for circuit tuning and iterations in the simulation were made in the proof-of-concept phase.
CONCLUSIONA novel compact BPF using Chebyshev multisection transformer has been presented. The filter has dimensions similar to those of the hairpin filter. The filter resonates at 5.28 GHz with a 3-dB cutoff bandwidth of 0.32 GHz (6%). The filter is promising for modern RF and microwave applications.
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