76results about How to "High inhibition" patented technology

The invention relates to a filtering-integration single-pole double-throw switch and a microstrip-line filtering-integration single-pole double-throw switch. A parallel LC resonance circuit, which does not load a switch circuit, of a common stage and two sets of parallel LC resonance circuits, which load switch circuits, of an intermediate stage are connected with parallel LC resonance circuits of a last stage through four coupling capacitors to form two signal circulation paths; and under control of direct-current bias voltage of the same absolute value and opposite polarity, the one signal circulation path shows a low-loss and high-selectivity band-pass filtering characteristic, and the other signal circulation path shows a high-suppression stopband characteristic in a wider frequency range, and thus a filtering-integration single-pole double-throw switch function is formed. The switches have the advantages that: two component functions of the switches and a filter are fused; a circuit is simple and compact in size; a conduction state has a steep broadband band-pass filtering characteristic; a cut-off state has a high-suppression full-resistance characteristic; high isolation is provided between ports, and a higher suppression function is provided for harmonics in the wider frequency range.