Wideband high frequency bandpass filter

A wideband high frequency bandpass filter, utilized to filter an electromagnetic wave having a central frequency of 60 GHz, comprising:

• a short-circuit resonator structure comprising a first T-shaped strip line, and the first T-shaped strip line comprising a ground terminal, a first terminal and a second terminal opposite to the first terminal;
• and
• an open-circuit resonator structure comprising a second T-shaped strip line and a signal transmission strip line, the second T-shaped strip line comprising a third terminal, a fourth terminal and a fifth terminal, the third terminal and the fourth terminal being opposite to each other, the fifth terminal being connected to the signal transmission strip line, and two opposite ends of the signal transmission strip line being bent toward to the third terminal and the forth terminal respectively, so as to form a gap with the third terminal and the forth terminal respectively;
• wherein, the signal transmission strip line faces and aparts from a strip line segment between the first terminal and the second terminal with an interval, a signal input terminal and a signal output terminal are disposed on bent portions of the signal transmission strip line respectively, the signal input terminal receives an electromagnetic wave signal, and the signal output terminal outputs the filtered electromagnetic wave signal.