Novel dual-passband filter coupler adopting double-layer slotted circular patch
A dual-passband and coupler technology, applied in waveguide-type devices, connecting devices, electrical components, etc., can solve the problems of inability to handle high power, low Q value and power tolerance, complex structure, etc., and achieve easy processing and integration. Stable amplitude difference and phase difference characteristics, good balance characteristics
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[0042] like figure 1 , figure 2 As shown, this example provides a dual-passband filter coupler using a double-layer slotted circular patch. It includes an upper dielectric substrate 101, a metal grounding plate 200 and a lower dielectric substrate 102 that are arranged in parallel from top to bottom, and the contours of the upper dielectric substrate 101, the metal grounding plate 200 and the lower dielectric substrate 102 coincide with each other;
[0043] When the signal is input from the first port P1, the signal output from the second port P2 and the third port P3 has the same amplitude and the same phase; when the signal is input from the fourth port P4, the output signal from the second port P2 and the third port P3 The signals are equal in amplitude and opposite in phase.
[0044] Specifically, in this embodiment, the upper dielectric substrate 101 is located on the upper layer of the device, and the lower dielectric substrate 102 is located on the lower layer of the...
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