A wide stopband low-pass Wilkinson power divider

A band-selective power divider is demonstrated for the first time. By replacing lumped element right-handed (RH) and left-handed (LH) transmission lines (TL) in a conventional Wilkinson power divider, it is possible to achieve both power division and filtering simultaneously. By utilizing the positive phase propagation property of an RHTL, which works as a low-pass filter, and the negative phase propagation property of an LHTL, which works as a high-pass filter, the band-selective quarter-wave sections required to construct a Wilkinson power divider are implemented. The fabricated circuit shows an insertion loss in the range 1.7 dB–2.5 dB in the passband, with the circuit dimensions of merely 12 mm by 10 mm.

Download Full-text

Design of Wilkinson power divider with embedded low-pass filter and cross-stub for improved stop-band characteristics

2011 IEEE MTT-S International Microwave Symposium ◽

10.1109/mwsym.2011.5973117 ◽

2011 ◽

Cited By ~ 2

Author(s):

M. Choi ◽

H. Lee ◽

Y. Cho ◽

X. Wang ◽

S. Yun

Keyword(s):

Stop Band ◽

Power Divider ◽

Pass Filter ◽

Low Pass Filter ◽

Low Pass ◽

Wilkinson Power Divider

Download Full-text

Compact, Harmonic Suppressed Gysel Power Divider with Plain Structure

Frequenz ◽

10.1515/freq-2016-0024 ◽

2017 ◽

Vol 71 (5-6) ◽

Cited By ~ 1

Author(s):

Saeed Roshani ◽

Payam Siahkamari ◽

Hesam Siahkamari

Keyword(s):

High Power ◽

Stop Band ◽

Size Reduction ◽

Power Divider ◽

Power Handling ◽

Low Pass ◽

Power Handling Capability ◽

Comprehensive Comparison ◽

Wilkinson Power Divider ◽

Low Pass Filters

AbstractA novel compact Gysel power divider with up to 12th, harmonics suppression was proposed in this study. Incorporation of six similar low-pass filters into the conventional Gysel power divider is applied to this design. The proposed power divider reduces the occupied area to only 9 % of the conventional Gysel power divider at 625 MHz (91 % size reduction). A comprehensive comparison between the proposed design and other published studies substantiates the superiority of the proposed design in terms of circuit size and stop-band bandwidth. Furthermore, this design retains the high-power handling capability over the Wilkinson power divider.

Download Full-text

The Integrated Design of Power Dividerand Low-pass Filter

Frequenz ◽

10.1515/freq-2017-0206 ◽

2018 ◽

Vol 72 (11-12) ◽

pp. 517-521

Author(s):

Guoan Wu ◽

Siyuan Dong ◽

Qinfen Xu

Keyword(s):

Second Harmonic ◽

Integrated Design ◽

Power Divider ◽

Center Frequency ◽

Harmonic Suppression ◽

Pass Filter ◽

Low Pass Filter ◽

Low Pass ◽

Wilkinson Power Divider ◽

Low Pass Filters

Abstract A compact filtering Wilkinson power divider with harmonic suppression based on lumped components is presented in this paper. The new divider uses two 5th-order elliptic-function low-pass filters to replace the quarter wavelength microstrip lines of the conventional Wilkinson power divider. The structure combines the power divider and the filter into a complete device. By integrating elliptic low-pass filters with the power divider, the proposed structure can suppress harmonics due to the filter’s band-notched characteristic. The power divider demonstrates a measured suppression of 37.1 dB for the second harmonic, 36.6 dB for the third harmonic, 38.6 dB for the fourth harmonic respectively. The harmonic suppression is higher than 20 dB from 2.75 to 7.035 GHz. Furthermore, lumped components are utilized to achieve improvement on size reduction. Compared with the conventional divider, the proposed structure effectively reduces the size by 77 %. The insertion loss is 3.2 dB at the center frequency (1.45GHz).

Download Full-text