Microstrip continuous passband broadband duplexer based on multi-broadband bridge and band-pass filter

The invention discloses a microstrip continuous passband broadband duplexer based on a multi-broadband bridge and a band-pass filter. The invention comprises a first band-pass filter, a second band-pass filter, a third band-pass filter, a first broadband bridge and a second broadband bridge, the first band-pass filter and the second band-pass filter have the same structure; the first broadband bridge and the second broadband bridge have the same structure; three output ports of the first broadband bridge are respectively connected with the input ends of the first band-pass filter, the second band-pass filter and the third band-pass filter; wherein two ports of the second broadband bridge are connected with the output end of the first band-pass filter and the output end of the second band-pass filter respectively, the output end of the third band-pass filter is the first output end of the duplexer, and the other two ports of the second broadband bridge are the second output end of the duplexer and the third ou