WITHDRAWN: A Miniaturized Bandpass Filter using Microstrip Lines

Reconfigured compact Minkowski fractal microstrip filter

“…The conventional method followed for designing this kind of filter is shown in Figure 1. The fifth‐order low pass microstrip filter is designed using the low pass prototype element values as per the maximally flat Butterworth table available in References 1–3 almost all the microwave books. The prototype low pass filter is modified into a bandpass filter followed by impedance and frequency scaling to construct the equivalent parallel‐coupled microstrip line layout.…”

“…And the bend curves go on increasing with their respective iteration value increments as shown in Figure 2. Each parallel‐coupled microstrip line of the inverted C filter 1,2 can be reconfigured into a modified Minkowski curve by using the iteration process. By using Equations ().…”

“…The microstrip bandpass filters have low insertion loss, compact size, wide stopband, and high selectivity. These are the most important parameters for modern wireless communication systems 1,2 . Microwave circuit designers will always meet the most challenging targets such as miniaturizing the components with multiband operations.…”

“…These are the most important parameters for modern wireless communication systems. 1,2 Microwave circuit designers will always meet the most challenging targets such as miniaturizing the components with multiband operations. To meet these challenges, many fractal geometries are emerging and found to be attractive.…”