Ultra wide-band filter based on double minor matters loading harmonic oscillator
An ultra-wideband filter and resonator technology, applied in the filter field, can solve the problem of insufficient stopband insertion loss, etc., and achieve the effects of compact structure, improved squareness, and small size
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[0030] Such as figure 1 As shown, it consists of a microstrip substrate, a front part, a back part and an input / output port; There are two input / output ports, namely input / output port 1 and input / output port 6.
[0031] Such as figure 2 As shown, the front part includes: a first uniform transmission line unit 2, a second uniform transmission line unit 5, a first parallel coupled feeder 3, a second parallel coupled feeder 4, a double stub loaded resonator 7, and a dielectric plate 8; The first uniform transmission line unit 2 and the second uniform transmission line unit 5 are respectively located at the left and right ends of the front and on the same horizontal line, the first input / output port 1 is connected to the first uniform transmission line 2, the second input\ The output port 6 is connected to the second uniform transmission line 5; the first parallel coupled feeder 3 and the second parallel coupled feeder 4 are connected through a double stub loaded resonator 7; the...
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