A New Design of Equal and Unequal Dual-Band Gysel Power Divider with Controllable Bandwidth

Hayati, Mohsen; Malakooti, Seyed-Ali; Jamshidi, Mohammad; Sarvarani, Y. Yari

doi:10.1080/02726343.2013.846155

Cited by 11 publications

(12 citation statements)

References 16 publications

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“…In recent years, many developments aimed to introduce design and performance improvements to this family of power dividers. These developments focused on achieving compactness, harmonic suppression, wideband operation, reconfigurability, unequal power division, multiband operation, or a combination of the preceding features …”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, examples of unequal dual‐band Gysel dividers can be found in Refs. . In that regard, an unequal dual‐band Gysel power divider was designed in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…In Ref. , equal and unequal dual‐band Gysel dividers were designed by replacing the quarter‐wavelength lines of the conventional Gysel power divider with a new dual‐band impedance transformer. Similarly, a new tri‐band transformer was used to implement an equal tri‐band Gysel power divider .…”

Section: Introductionmentioning

confidence: 99%

“…4 In recent years, many developments aimed to introduce design and performance improvements to this family of power dividers. These developments focused on achieving compactness, 5 harmonic suppression, 6 wideband operation, 7,8 reconfigurability, 9 unequal power division, [10][11][12][13][14][15][16][17] multiband operation, [18][19][20][21][22][23][24][25][26][27][28] or a combination of the preceding features. 14 For designs with unequal power division, various design approaches were proposed.…”

Section: Introductionmentioning

confidence: 99%

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Equal and unequal quad‐band Gysel power dividers

Alazemi

Kourah

2018

Int J RF Microw Comput Aided Eng

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This article presents for the first time a quad‐band Gysel power divider capable of achieving equal and unequal power division at four arbitrary frequencies. The structure of the proposed divider is similar to its single‐band counterpart but loaded with quad‐band reactive networks. The design procedure and theoretical analysis of the proposed divider are presented. A quad‐band Gysel power divider with equal division and another with 2:1 unequal division are designed at the operational frequencies of 0.85, 1.6, 2.4, and 3 GHz. Simulation and measurement results of the two dividers are presented, and good performance is observed at each band. For both designs, the realized power division ratios are within 1 dB from their ideal values, whereas the matching and isolation levels are below −10 dB at the four bands.

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Section: Introductionmentioning

confidence: 99%

“…On the other hand, examples of unequal dual‐band Gysel dividers can be found in Refs. . In that regard, an unequal dual‐band Gysel power divider was designed in Ref.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Equal and unequal quad‐band Gysel power dividers

Alazemi

Kourah

2018

Int J RF Microw Comput Aided Eng

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“…The original and useful power divider is the Wilkinson divider with excellent isolation between two output ports at the centre frequency [1]. To achieve dual-band operation, several modified power dividers have been developed [2][3][4][5][6][7][8][9][10]. Compared with conventional transmission line, the coupled-line has advantages of compact structure and flexible design parameters due to introducing even-and odd-mode impedances.…”

Section: Introductionmentioning

confidence: 99%

A Design Approach for Dual-Band Wilkinson Power Divider With Two Pairs of Coupled-Line Sections

Xu¹,

Tang²

2014

PIER Letters

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Abstract-This paper presents a design approach for dual-band Wilkinson power dividers. Two pairs of parallel coupled-lines are used to replace the quarter-wavelength transformers in the conventional Wilkinson power divider to obtain dual-band operation. Using even-and odd-mode analysis, the closedform design equations are derived for design parameters and design procedures of the proposed dual-band power divider are given. For verification purpose, a practical power divider, which operates at 1 GHz and 2.1 GHz with 3 dB power dividing ratio, is designed, fabricated and tested. The simulated and measured results are in good agreement.

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A broadband out-of-phase gysel power divider based on a dual-band circuit with a single fixed isolation resistor

Mousavi

Rahimi

Malakooti

et al. 2016

Int J RF and Microwave Comp Aid Eng

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Based on the double‐sided parallel‐strip lines with an inserted conductor as a virtual ground, a high power divider with dual‐band/broadband response and frequency‐independent 180° phase difference between the output ports is implemented in this paper. The circuit topology employs a single commercially available external isolation resistor as well as moderate line impedances (15–100 ohm), making it suitable for high‐power applications. Precise closed‐form design equations on the basis of even‐ and odd‐mode analysis are derived. In addition to the wide range of frequency band ratios from 1 to 2.65, broadband response is also obtained by selecting the proper value of frequency band ratios. To substantiate the design equations and theory, a circuit with 2:1 frequency ratio and 84.5% bandwidth referring to 16 dB isolation and 12 dB return loss values is developed. To the authors' knowledge, this is the widest bandwidth reported for out‐of‐phase high power dividers. © 2016 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2016.

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A New Design of Equal and Unequal Dual-Band Gysel Power Divider with Controllable Bandwidth

Cited by 11 publications

References 16 publications

Equal and unequal quad‐band Gysel power dividers

Equal and unequal quad‐band Gysel power dividers

A Design Approach for Dual-Band Wilkinson Power Divider With Two Pairs of Coupled-Line Sections

A broadband out-of-phase gysel power divider based on a dual-band circuit with a single fixed isolation resistor

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