Abstract
In this paper, a new analytical design technique for a three-section wideband Wilkinson power divider is presented. The proposed design technique utilizes the dual-frequency behavior of commensurate transmission lines for the even-mode analysis and contributes a set of completely new and rigorous design equations for the odd-mode analysis. Measurement of a fabricated prototype utilizing the proposed technique shows an excellent return-loss (>16 dB), insertion loss (<3.35 dB), and excellent isolation (>22.7 dB) over 104% fractional bandwidth extending beyond the minimum requirements.
Highlights
Electronics 2021, 10, 2332. https://Power dividers are indispensable and ubiquitous components in radio-frequency (RF)/microwave systems [1,2]
This dual-band design approach guarantees that the resonance frequencies are always located at f 1 and f 2, and the achieved BW = f H − f L = ( f 2 − f 1 ) + 2 f ex, where 2 f ex is the extra bandwidth that provides a margin for process/component variations
A completely new analytical design methodology for a three-section Wilkinson power divider (WPD) was presented in this paper
Summary
Power dividers are indispensable and ubiquitous components in radio-frequency (RF)/microwave systems [1,2]. They are frequently used in antenna feeding networks, multistage and Doherty power amplifiers, mixers, and in RF/microwave measurements Owing to their ability to provide decent matching and isolation in a simpler structure, the three-port Wilkinson power divider (WPD) has become one of the most widely used power divider types [3]. As depicted, the proposed design methodology utilizes a dual-band design concept [7] to arrive at a wideband design This dual-band design approach guarantees that the resonance frequencies are always located at f 1 and f 2 , and the achieved BW = f H − f L = ( f 2 − f 1 ) + 2 f ex , where 2 f ex is the extra bandwidth that provides a margin for process/component variations.
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