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

Sensors

Rakibul Islam¹  Asif I. Omi²  Praveen Sekhar²  Mohammad A. Maktoomi³  Christine Zakzewski³ 

[1] Department of Electrical & Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA;Department of Engineering & Computer Science, Washington State University Vancouver, Vancouver, WA 98686, USA;Department of Physics & Engineering, The University of Scranton, Scranton, PA 18510, USA;

关键词: coupled-line;    coupler;    dual-band;    S-parameter;    Wilkinson power divider;   

DOI  :  10.3390/s21196330

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown