Design of Dielectric coupled Line Resonator with Defector Ground Structure for Microwave frequency with Double Band Pass filter

Microwave Integrated circuits (MIC) plays a major role in wireless communication. It provides a numerous enhanced strategies and tactics to advance the contemporary technology like 5G and satellite communication, among others. Most of the microwave system consists of both passive and active components, which are more difficult to design and manufacture with accurate noise free frequency characteristic. And at the same time rejection of unwanted signal is important consideration in communication to transmit the data from sender to receiver. In this work, a dielectric coupled line resonator with double bandpass filter are used to analyse the frequency range for 5G application and it has a capability to reject the unwanted frequency in communication system. The fabrication is a light weight with low cost and compact structure. In recent survey 5G application are used the frequency range in between 700MHz, 3.6 GHz and 26 GHz bands. Using this design a better performance metric results can be achieved with high out band rejection ratio with improved Q value and also the design procedure have been discussed. This double bandpass filter can allows the minimum possible attenuation with low-frequency noise under an undesired frequency and the resonant frequency is 1.880GHz and 1.70GHz with fractional bandwidth of 4% and 2.7% respectively. The simulated results show the proposed designs that outperform the existing DGS designs.