Development of Three Port Microwave Cirucits with Tunable and Switchable Funcitons

Due to the rapid developments of cloud technology, big data and the increasing numbers of handheld devices and wearable electronic equipment, the future wireless communication systems should have data transmission speed much faster than that we use now. For further increasing the data transmission speed, two kinds of new technologies, which are the channel congregation (CC) and space domain multiple access (SDMA), might be adopted in the next generation wireless communication system. Therefore, more and more RF circuits that are adjustable, switchable and multi operation frequencies will find their applications in the future wireless communication systems. In this project, we plan to develop some novel three-port microwave components, which are tunable and switchable. The first kind of circuits is the single-pole-double throw (SPDT) switchable filters consisting of only one single ring resonator to minimize the circuit size and reduce the overall insertion loss. Then we plan to develop new type of diplexer, which is constructed with two types of tunable and switchable channel filters. Because the fifth generation wireless communication system maybe use millimeter-wave frequency to transmit the signal between devices, therefore, the chip diplexer consisting of tunable channel filters will be designed and fabricated on GaAs substrate for the applications in millimeter-wave frequencies.

Project ID:PB10608-2422
External Project ID:MOST106-2221-E182-008