MULTIBAND LOW PASS FILTER: A REVIEW

Abstract

Here we are going to design multiband low pass filter with the help of HFSS software and stimulate design with different parameters and make it wrathful for real life implementation. Filters are the basic part in wired, and wireless telecommunications and radar system circuits and they play an important role in determining the cost and performance of a system. All these have made a vital contribution to both the required performance specifications for filters and other commercial requirements in terms of low cost, large storage capacity and high-speed performance. This review paper presents several design examples for multi-band, multi-mode micro strip filter resonators to satisfy RF, WLAN, WiMAX, UWB and other wireless communication frequency bands. To analyse the resonant frequencies odd-mode and even -modes can be used for the symmetrical structure. In general, the multi-mode resonators can be designed by using different methods like cross-coupling resonators Structure, and the allocation of the fundamental resonant frequencies of the resonator as stated by the Chebyshev’s insertion loss function. We will also discuss about the low pass filter and how this filter can be used to build Multiband filter. We planned to reduce the no of components for lightweight design and low power consume to provide efficient used and also try to use high frequency modern components to provide better gain.