A Novel Analytical Design Technique for a Wideband Wilkinson Power Divider Using Dual-Band Topology

Abstract

In this paper, a novel analytical design technique is presented to implement a coupled-line wideband Wilkinson power divider (WPD). The configuration of the WPD is comprised of three distinct coupled-line and three isolation resistors. A comprehensive theoretical analysis is conducted to arrive at a set of completely new and rigorous design equations utilizing the dual-band behavior of commensurate transmission lines. Further, the corresponding S-parameters equations are also derived, which determine the wideband capability of the proposed WPD. To validate the proposed design concept, a prototype working at the resonance frequencies of 0.9 GHz and 1.8 GHz is designed and fabricated using 60 mils thick Rogers’ RO4003C substrate. The measured result of the fabricated prototype exhibits an excellent input return loss > 16.4 dB, output return loss > 15 dB, insertion loss < 3.30 dB and a remarkable isolation > 22 dB within the band and with a 15 dB and 10 dB references provide a fractional bandwidth of 110% and 141%, respectively.

Noise Cancellation Effects in Integrated Photonics with Wilkinson Power Dividers

“…Wilkinson power dividers (WPDs) are lossy reciprocal devices with a 1 × N port configuration, characterized for having all their N + 1 ports matched (no reflections) and having N mutually isolated ports. , WPDs provide functionalities of power division/combination , as well as coherent perfect absorption (CPA). − The lossy character of WPDs plays a fundamental role on their mode of operation, since their matching and isolation properties are ultimately enabled by the dissipation of unwanted signals in resistor elements. , WPDs are widely used at RF and microwave frequencies for communication and sensing applications, being a common component of transceivers, transistors, modulators, and phased arrays. − Due to their ability to cover multiple frequency bands, they have been deployed in 5G and satellite communication infrastructures. − In addition, WPDs have been used in networks of amplifiers, , using paralleled configurations to increase their dynamical range. Recent reports also suggest that WPDs might increase the SNR of beam-forming networks …”

Design of a Filtering Power Divider with Simple Symmetric Structure Using Stubs

“…Recently, new design techniques have been presented to design wideband power dividers [30][31][32]. In [30], coupled lines and the multi-section technique were used to achieve dual-band and wideband operations.…”

“…Recently, new design techniques have been presented to design wideband power dividers [30][31][32]. In [30], coupled lines and the multi-section technique were used to achieve dual-band and wideband operations. Furthermore, in [31,32], a multi-section structure and analytic design method were used to design power dividers with wideband and dual-band operations.…”