Abstract:
In this project, we worked on the design of a two channel a Switch Filter Bank which is
a crucial component in communication systems. It consist of two parallel coupled line
microstrip filters having center frequency of 2.45 GHz and 2.75 GHz, respectively.
In order to provide a smooth and uninterrupted transition between channels, we choose
a MMIC based single pole double throw switches HMC284AMS8GETR. The switches
exhibit minimal signal loss and have a low switching time. Rogers RO4350B substrate
was used for both filter and switch designs. A controller was also designed which make
the decision regarding the channel’s path based on his input voltage. The simulation
were performed using keysight ADS.
Ultimately, we assess the effectiveness of the Filter Bank by employing a Vector Net work Analyzer (VNA). The VNA is configured to measure a range of properties, such as
bandwidth, insertion loss, return loss, and isolation. The SFB shows a measured centre
frequencies of 2.428 GHz and 2.73 GHz respectively. It has bandwidths of 83 MHz and
101 MHz, with insertion losses of 15.96 dB and 13.87 dB, respectively. These values
indicate little signal deterioration.
