Design of a frequency tripler using a novel bandpass filter for Ku‐band application

Abstract

area of the novel resonator in Figure 7 is 10 ϫ 7 mm 2 , where the corresponding resonator in an ordinary bias-T occupies an area of 10 ϫ 13 mm 2 , hence the size reduction is about 50%. MEASUREMENTThe proposed resonators and the bias-T circuit shown in Figures 2 and 7, respectively were constructed and printed on RT/Duroid-6010.2 substrate with r ϭ 10.2 and thickness of 0.64 mm (Figs. 9 and 10). The S-parameters of the circuits were measured using a 8722D Agilent network analyzer. The results are shown in Figures 11 and 12, respectively. It can be seen that circuits perform as expected and the results are in good agreement with the simulated results. CONCLUSIONS

Compact Microstrip Narrow Bandpass Filter With Good Selectivity and Wide Stopband Rejection for Ku-Band Applications

“…To achieve this goal, the Ku-band bandpass filters have become one of the most important circuit components. There are many methods proposed to design Ku-band bandpass filters [1][2][3][4][5][6][7][8][9][10].…”

“…In [4] and [5], two microstrip Kuband bandpass filters have been designed using high-temperature superconducting technology. To reduce manufacturing costs, a microstrip Ku-band bandpass filter is proposed in [6] and [7]. But, the 3-dB fractional bandwidth (FBW) is not narrow enough and the stopband rejection not ideal.…”