Design Methodology of Multi-Frequency Unequal Split Wilkinson Power Dividers Using Transmission Line Transformers

Qaroot, Abdullah Mazen; Dib, Nihad; Gheethan, and Ahmad A.

doi:10.2528/pierb10042809

Cited by 23 publications

(20 citation statements)

References 18 publications

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“…Specifically, considering the same substrate mentioned earlier, and operating frequencies of 0.5 GHz, 1.25 GHz and 2 GHz, each 57.735 Ω quarter-wave uniform section is replaced by an NTLT having a length of 81.2 mm (which corresponds to a quarterwavelength at 0.5 GHz), and a non-uniform impedance bounded between 0.5 ≤Z (z) ≤ 2.176 corresponding to a microstrip width variation of (0.332 mm ≤ W (z) ≤ 6.8 mm). For comparison purposes, Figure 7(a) shows the triple-frequency uniform 3-section transformer that has been designed using the expressions in [20], while Figure 7(b) presents the proposed layout of the triple-frequency NTLT section. Also, Figure 7(c) presents the proposed BPD after incorporating the designed NTLT sections instead of the conventional uniform ones.…”

Section: Ntlts For Multi-band Operationmentioning

confidence: 99%

Non-Uniform Transmission Line Transformers and Their Application in the Design of Compact Multi-Band Bagley Power Dividers With Harmonics Suppression

Shamaileh¹,

Qaroot²,

Dib³

2011

PIER

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Abstract-In this paper, the application of compact non-uniform transmission line transformers (NTLTs) in suppressing and controlling the odd harmonics of the fundamental frequency is presented. A design example showing the complete suppression of the odd harmonics of the fundamental frequency is given. In addition, several compact NTLTs are designed showing the possibility of controlling the existence of a fundamental frequency's odd harmonics. Moreover, multi-band operation using NTLTs is investigated. Specifically, a design example of a miniaturized triple-frequency NTLT is introduced. Based on these compact NTLTs, a 3-way triple-frequency modified Bagley power divider (BPD) with a size reduction of 50%, and a 5-way modified BPD with harmonics suppression and size reduction of 34%, are designed. For verification purposes, both dividers are simulated using the two full-wave simulators IE3D and HFSS. Moreover, the modified 5-way BPD with harmonics suppression is fabricated and measured. Both the simulation and measurement results validate the design approach.

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Section: Ntlts For Multi-band Operationmentioning

confidence: 99%

Non-Uniform Transmission Line Transformers and Their Application in the Design of Compact Multi-Band Bagley Power Dividers With Harmonics Suppression

Shamaileh¹,

Qaroot²,

Dib³

2011

PIER

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“…Calculate the fitness of each particle according to Equation (13). Record the personal best particles and global best particle.…”

Section: Enhanced Psomentioning

confidence: 99%

“…Several design methods [2][3][4] have been studied to increase bandwidth and high isolation between output ports. Moreover, dualband [5][6][7][8][9][10][11][12] and multiband [13] WPDs have been studied. Even-odd mode analysis method [14] and circuit theory are usually used to analyze WPDs.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of Equal Split Broadband Microstrip Wilkinson Power Divider Using Enhanced Particle Swarm Optimization Algorithm

Wang¹,

Zhang²,

Xu³

et al. 2011

PIER

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Abstract-An enhanced particle swarm optimization (EPSO) algorithm is proposed. To improve convergence accuracy and velocity, we introduce a quadratic interpolation method and perturbation to personal best particles in EPSO. Then, a design procedure based on the EPSO is proposed for the design and optimization of equal split broadband microstrip Wilkinson power dividers (MWPDs). A set of numerical examples and fabricated samples are presented to validate the improvement of the proposed EPSO. Even-odd mode analysis is incorporated in the design procedure to calculate the scattering matrix of the MWPD on the basis of the dispersion and dissipation microstrip line model. A fitness function is then constructed according to the scattering parameters. The optimized widths and lengths of microstrip lines and values of isolation resistors are directly obtained by minimizing the fitness function. EPSO is also compared with the genetic algorithm (GA), standard particle swarm optimization (PSO) and improved particle swarm optimization (IPSO).

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“…The general design of multi-frequency equal split WPD was presented in [10]. In [11], the multi-frequency operation was extended to the unequal split WPD. Moreover, many papers addressed the design of dual-frequency WPDs and branch line couplers [12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Dual-Frequency Modified 3-Way Bagley Power Dividers

Qaroot¹,

Shamaileh²,

Dib³

2011

PIER C

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Abstract-In this paper, different topologies of dual-frequency modified 3-way Bagley polygon power dividers are designed and analyzed. Equal split power division is achieved at arbitrary design frequencies. In the first structure, two-section transmission line transformer is used to realize the dual-frequency operation. In the second and third structures, dual-frequency T-shaped and π-shaped matching networks are used. For the sake of simplicity, closed form design equations are presented for each matching network. To validate the design procedure, three examples are designed, simulated, and fabricated. The three matching networks are explored through these three examples. The design frequencies are chosen to be 0.5 GHz and 1 GHz.

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Design Methodology of Multi-Frequency Unequal Split Wilkinson Power Dividers Using Transmission Line Transformers

Cited by 23 publications

References 18 publications

Non-Uniform Transmission Line Transformers and Their Application in the Design of Compact Multi-Band Bagley Power Dividers With Harmonics Suppression

Non-Uniform Transmission Line Transformers and Their Application in the Design of Compact Multi-Band Bagley Power Dividers With Harmonics Suppression

Design and Optimization of Equal Split Broadband Microstrip Wilkinson Power Divider Using Enhanced Particle Swarm Optimization Algorithm

Design and Analysis of Dual-Frequency Modified 3-Way Bagley Power Dividers

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