A Novel Dual-Band Multi-Way Power Divider Using Coupled Lines

Abstract

Abstract-In this paper, coupled lines are used in the design of a dual band planar multi-way Bagley polygon power divider to reduce the size is proposed. For the input port matching and transmission characters are affected by the even mode impedance only, analysis of the multi-way Bagley polygon power divider and equivalent circuit based on coupled lines, closed form design equations are presented with even mode impedance, and odd mode impedance is obtained arbitrarily. To validate the design procedure, two dual band threeway Bagley polygon power dividers are designed, simulated, and fabricated using coupled lines with areas of 3.17 cm 2 and 2.53 cm 2 , and the corresponding conventional divider with areas of 17.86 cm 2 and 11.74 cm 2 , respectively. When coupled lines are used, the layout is more compact with a reduction in size of more than nearly 80% compared to the conventional design.

Multiway wideband power dividers

“…However, GPDs possess a large circuit area as compared to WPDs, and thus, may not be a suitable option for applications where miniaturized circuitry occupation is a must. The Bagley polygon power divider (BPD), on the other hand, is becoming a new research area [18][19][20][21][22][23][24][25][26][27][28]. The BPD offers structural compactness and excellent input port matching and transmission.…”

“…In [28], a generalized design procedure for an unequal split multiway BPD was elaborated. It is noteworthy to point out that BPDs investigated in [18][19][20][21][22][23][24][25][26][27][28] have an odd number of output ports; whereas a novel BPD with an even number of output ports was introduced in [29].…”

“…The conventional BPD was reformed in by eliminating the half‐wavelength arbitrarily chosen impedances connecting the output ports with specific impedance values of unconditional lengths. Composite right‐/left‐handed transmission lines , dual‐passband filter sections , two‐section quarter‐wavelength transformers , dual‐band matching networks , and coupled lines were investigated to achieve dual‐frequency BPD functionality. Miniaturized multiband multiway BPDs utilizing NTLs were proposed in .…”

Filtering Power Divider Based on Lumped Elements

“…In RF front-ends, power dividers and bandpass filters are important building blocks and attract much research interest [4][5][6][7][8]. In many applications, they coexist in the same front-end.…”