© The Institution of Engineering and Technology
A wideband filtering crossover using a dual-mode ring resonator is proposed. Two half-wavelength open stubs are used to produce transmission zeroes for the crossover passband. A high selectivity wideband filtering crossover with a fifth-order passband is designed and fabricated for verification. The measured results and theoretical expectations have good agreement.
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Wideband filtering crossover using dual-mode ring resonator