Abstract
The objective of this thesis is to design, simulate and fabricate a dielectric resonator band-pass filter to operate at a center frequency of 1.905 GHz with a narrow bandwidth of 8.0 MHz and 60 dB rejection ± 1 MHz from the pass-band edge. In this thesis, I will be designing this band-pass filter with the aid of innovative cross coupling techniques between non-adjacent resonators to produce finite transmission zeros at the desired rejection frequencies. This filter will be utilized in the wireless industry where co-location interference between neighboring cell sites is causing an issue. The aim is to achieve the 60 dB rejection whilst maintaining the 1.5 dB insertion loss and 15 dB return loss over the pass-band frequencies. Various simulation programs and machines will be used to design, develop and fabricate the band-pass filter. The emphasis will be to maintain the insertion loss, return loss and rejection over the temperature range 0 to 70°C by use of a high Q dielectric resonator and temperature compensated cross couplings.