Wide‐stopband Wilkinson power divider with bandpass response

Abstract

A wide-stopband Wilkinson power divider with bandpass response and good isolation is presented. A 3-terminal, 2-pole bandpass filter and two 3-pole lowpass filters are used to replace the two quarter-wavelength transformer in a conventional Wilkinson power. The divider consists of two shorted-circuited half-wavelength stepped-impedance resonators and two 3-pole microstrip stepped-impedance lowpass filters. Thus, the divider achieves not only a bandpass response but also a very wide stopband. For the upper stopband performance, the rejection level is >10 dB up to 22.2 times the centre frequency.

A novel power divider with ultra-wideband harmonics suppression based on double-sided parallel spoof surface plasmon polaritons transmission line

“…Power dividers, fundamental RF and microwave passive component, are widely applied in RF/microwave passive/active devices and subsystems. For meeting such various demands of these systems, the technique of co‐designing multiple functionalities, such as multiband/wideband operation, filtering property, harmonic suppression, and phase shifting characteristic, to realize multi‐function power divider has promoted considerable research activities . For example, a compact dual‐mode dual‐band filtering power divider and two wideband four‐way out‐of‐phase power dividers were presented.…”

“…In order to solve the problem of harmonics, power dividers with harmonic suppression have been extensively investigated. Several methods have been proposed to design harmonic suppressed power dividers . Open and stepped‐impedance stubs loaded low‐pass filters are used for generating the desired out‐of‐band transmission zeros.…”

“…Several methods have been proposed to design harmonic suppressed power dividers . Open and stepped‐impedance stubs loaded low‐pass filters are used for generating the desired out‐of‐band transmission zeros. Furthermore, by employing stub‐loaded ring resonator, composite right‐/left‐handed (CRLH) transmission line resonators and embedded dual‐mode resonators, the harmonic suppression property can be realized in power dividers.…”

A Novel Power Divider Integrated With One Bandpass Filter

“…The return loss at input port was about 15 dB, which was better than the ones proposed in [6,7]. In order to reject the unwanted signals while dividing signal, numerous power dividers with filtering response have been designed [12][13][14][15][16][17][18].…”

Power Divider Based on Stepped-Impedance Slotline

“…As all know, Wilkinson power divider is the most classical power divider. Up to now, there have been number of improved Wilkinson power dividers being proposed [1][2][3][4][5]. With the research on slotline techniques, various power dividers based on slotline techniques have been designed [6][7][8].…”