Cylindrical cavity microwave power combiner with microstrip line inputs and rectangular waveguide output

Ravindra, Vinay; Saito, Hirobumi; Hirokawa, Jiro; Zhang, Miao

doi:10.1109/mwsym.2015.7166761

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…We are developing GaN amplifiers with duty ratio of 25%, paying attention to its thermal design. We will combine RF outputs from 6 modules of 200W GaN amplifiers with a waveguide resonator combiner to obtain peak power of 1000 W [19]. The inputs of the power combiner are microstrip lines from 200 W amplifier modules.…”

Section: Gan Power Amplifier and Heat Managementmentioning

confidence: 99%

Compact X-Band Synthetic Aperture Radar for 100kg Class Satellite

Saito¹,

Akbar²,

Watanabe³

et al. 2017

IEICE Trans. Commun.

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SUMMARYWe proposed a new architecture of antenna, transmitter and receiver feeding configuration for small synthetic aperture radar (SAR) that is compatible with 100 kg class satellite. Promising applications are constellations of earth observations together with optical sensors, and responsive, disaster monitoring missions. The SAR antenna is a deployable, passive, honeycomb panel antenna with slot array that can be stowed compactly. RF (radio frequency) instruments are in a satellite body and RF signal is fed to a deployable antenna through non-contacting choke flanges at deployable hinges. This paper describes its development strategy and the present development status of the small spaceborne SAR based on this architecture. key words: synthetic aperture radar, 100 kg class small satellite, X band, deployable honeycomb slot array antenna

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Section: Gan Power Amplifier and Heat Managementmentioning

confidence: 99%

Compact X-Band Synthetic Aperture Radar for 100kg Class Satellite

Saito¹,

Akbar²,

Watanabe³

et al. 2017

IEICE Trans. Commun.

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“…Due to their inherent symmetry, the amplitude and phase of their input ports are well balanced. Radial combiners are usually implemented using waveguides [10]- [12] or microstrip transmission lines [5], [13]- [15]. By comparing them, waveguide radial power combiners typically have a lower loss, which is an inherent advantage of waveguides over microstrip lines.…”

Section: Introductionmentioning

confidence: 99%

Printed Circuit Board Implementation of Wideband Radial Power Combiner

Javid-Hosseini

Nayyeri

2019

IEEE Access

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This paper presents a new approach to design and implementation of a wideband microstrip radial power combiner with a planar structure in a way that it can be simply and inexpensively fabricated using a standard multilayer printed circuit board (PCB) technology. A 14-way power combiner with a two-octave bandwidth (1.5-6 GHz) is designed and fabricated on a three-layer PCB. Our measurements showed an amplitude and phase balance of ±0.75 dB and ±4.5 degrees, respectively, between the input ports. The main (output) port exhibited a reflection lower than −10 dB. INDEX TERMS Distributed computing, manufacturing process, microstrip, multilayer circuit board, multiphysics simulation, N-way power combiner, planar circuits, power handling, power splitter, printed circuit board, radial power combiner, wideband.

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