A Review on the Structure, Application and Performance of the Passive Microstrip Devices

Microstrip technology is widely applied for design and implementation of several communication devices such as filters, diplexers, triplexers, multiplexers, couplers, etc. They are utilized to isolate desired signals remove disturbing signals. The layout diplexers triplexers have two, three four ports, respectively. Passive filters at least one pass channel, whereas two channels transmit the signal, multiplexers more passbands with channels. In order implement passive components, first a cell called resonator must be designed. Creativity very important in design. It small novel get better device than previous works. Therefore, reported resonator, used microstrip devices, studied this work. There fierce competition among designers miniaturize increase performance. Hence we will investigate them, from point view size performance, Some multi-channel, which difficult two-channel diplexers. multi-channel less also because controlled. Hence, they designed can bandpass-bandpass or lowpass-bandpass, where latest This designing lowpass-bandpass diplexer needs lowpass bandpass resonators, only resonator.