Efficient Optimization of a Ka-Band Branch Waveguide Power Divider

Ye, Guo; Xu, Yuehang; Lei, Xia; Xu, Ruimin

doi:10.1163/156939308783122698

Cited by 9 publications

(7 citation statements)

References 15 publications

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“…The EM-like algorithm based optimization scheme is easy to implement. Therefore, it is suitable not only for problems of antenna arrays, but also for many other nonlinear optimization problems in electromagnetic waves [10][11][12][13][14][15][16][17][18][19][20].…”

Section: Discussionmentioning

confidence: 99%

Application of Electromagnetism-Like Algorithm to Phase-Only Syntheses of Antenna Arrays

Lee¹,

Jhang²

2008

PIER

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Abstract-In this paper, a novel stochastic approach, i.e., the electromagnetism-like (EM-like) algorithm, is applied to phase-only syntheses of antenna arrays. The goal is to minimize the pattern sidelobe under null-steering constraints by phase-only adjusting. The mechanism of EM-like algorithm results from the Coulomb's Law of Electromagnetics. It does not require gradient calculations, and can automatically converge at a good solution through the virtual charge of each particle. Simulation results show that the EM-like algorithm can well treat the phase-only optimization of antenna arrays. Although the null-steering constraints will affect the optimization in sidelobe reduction, it can be easily included in the EM-like based optimization scheme. The EM-like algorithm can be applied not only to problems of antenna arrays, but also to many other nonlinear optimization problems in electromagnetic waves.

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Section: Discussionmentioning

confidence: 99%

Application of Electromagnetism-Like Algorithm to Phase-Only Syntheses of Antenna Arrays

Lee¹,

Jhang²

2008

PIER

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“…The coupler may . In recent years different designs of power divider/combiner are presented [14][15][16][17][18][19][20][21][22][23][24]. The scattering matrix of a 4-port coupler (Fig.…”

Section: Basic Configurations and Design Of Active Circulatormentioning

confidence: 99%

Analysis and Design of New Active Quasi Circulator and Circulators

Bahri¹,

Abdipour²,

Moradi³

2009

PIER

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Abstract-This paper introduces two new type active quasi circulators and three new type active circulators which use the outof-phase power divider/combiner, symmetric/anti-symmetric couplers and generic unilateral amplifiers.The proposed circuits are full-symmetric and composed of conventional microwave devices. Analytical relations for active quasi circulator modules are described. These modules have many variations and can be used for very wide frequency range depending on the type of the employed unilateral amplifier, power divider/combiner and symmetric/anti-symmetric couplers. Based on the proposed configurations, analysis and design of n-port active circulators are presented. Also they can be used in MMICs as active quasi circulators, active circulators and in other high frequency applications.

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“…They present many excellent advantages, including wideband, low insert loss, high isolation etc. Hence, many reported articles have focused on the power dividers based on directional coupler, such as those in References 1‐10. Recently, the improved wideband three‐way waveguide power divider is widely applied owing to its outstanding advantages such as wideband, low insert loss, high return loss, high isolation and simple design.…”

Section: Introductionmentioning

confidence: 99%

An improved wideband three‐way waveguide power divider based on directional coupler for Ku band application

Zeng

Shang

2020

Int J RF Microw Comput Aided Eng

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In this paper, a directional‐coupler‐based wideband three‐way waveguide power divider is demonstrated. The proposed power divider consists of tapered rectangular waveguide, six‐port directional coupler and iron pentacar‐bonyl terminations. Its fractional bandwidth is 10.99% at 12.9 to 14.4 GHz. In addition, the return loss of all input and output ports is better than 20 dB and the isolation of the three output ports is more than 20 dB. Moreover, the insert loss is better than 5.19 dB including the power division ratio of 4.8 dB and the amplitude imbalance among the three output ports of less than ±0.4 dB. The experimental results agree well with the simulation ones, which indicates the validity of our method. With the above‐mentioned characteristics, the proposed device can be widely used in Ku band communication systems.

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Efficient Optimization of a Ka-Band Branch Waveguide Power Divider

Cited by 9 publications

References 15 publications

Application of Electromagnetism-Like Algorithm to Phase-Only Syntheses of Antenna Arrays

Application of Electromagnetism-Like Algorithm to Phase-Only Syntheses of Antenna Arrays

Analysis and Design of New Active Quasi Circulator and Circulators

An improved wideband three‐way waveguide power divider based on directional coupler for Ku band application

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