A High-Power $Ka$-Band (31–36 GHz) Solid-State Amplifier Based on Low-Loss Corporate Waveguide Combining

Epp, L.; Hoppe, Daniel; Khan, A.R.; Stride, Scot L.

doi:10.1109/tmtt.2008.927299

Cited by 97 publications

(36 citation statements)

References 23 publications

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“…The match between the output full-height waveguides and reduced-height waveguides is realized by using stepped impedance transformers. The length of the stepped impedance transformers are approximately 1/4 wavelength of the operational frequency [4]. As shown in Fig.…”

Section: Design Of Combiner Structurementioning

confidence: 99%

A millimeter-wave solid-state power combining circuit based on low-loss corporate waveguide structure

Dong

Wang

et al. 2010

2010 International Conference on Microwave and Millimeter Wave Technology

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In this paper, we present a Ka-band (30GHz-35GHz) solid-state power combining circuit using 4 low-power amplifier modules. By using low-loss waveguide power dividing/combining network and a monolithic microwave integrated circuit (MMIC) with a low-loss microstrip-to-waveguide transition, the combining circuit output loss is minimized, so a high combining efficiency larger than 85% from 30 GHz to 35 GHz is achieved. Measured results show a good agreement with simulated results. Meanwhile the new combing structure shows many advantages, such as easy assembling and maintenance, excellent heat-sink capacity, a strong potential for higher power and higher frequency. Modular architecture is adopted in the combiner design, adding great flexibility to circuit operation. Modular amplifiers can be premade and reserved in case any malfunctioning amplifier needs to be replaced.

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Section: Design Of Combiner Structurementioning

confidence: 99%

A millimeter-wave solid-state power combining circuit based on low-loss corporate waveguide structure

Dong

Wang

et al. 2010

2010 International Conference on Microwave and Millimeter Wave Technology

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“…It is necessary to combine power from multiple devices to obtain the desired power levels because the output power from an individual solid-state device is often not enough in millimeter-wave frequencies [1] [2]. Recent years, a lot of excellent work has been done in power combining technology to improve the output power, combining efficiency, and operation frequency band.…”

Section: Introductionmentioning

confidence: 99%

A Ka-band waveguide-based traveling-wave spatial power divider/combiner

Kang

Chu

2012

2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

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A Ka-band waveguide-based four-stage eight-way power divider/combiner is presented based on the traveling-wave technique and the spatial power combining technique. The dualprobe, which are symmetrically inserted in one broadside of the waveguide, double the power dividing ways without adding the insertion loss. The method of images is used to simplify the analysis and design process of the dual-probe structure. The power divider/combiner is designed, fabricated and measured to demonstrate its wide bandwidth and low insertion loss performance. From 30GHz to 40GHz, the measured return loss of the back-to-back structure is lower than -15dB and the insertion loss is less than 1.2dB.

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“…Recently, spatial and quasi-optical power-combining technology has been developed rapidly [1][2][3][4]. Various quasi-optical architectures reported may be classified as either three-dimensional (3D) or two-dimensional (2D) circuits.…”

Section: Introductionmentioning

confidence: 99%

“…However, efficient implementation of the MoM approach with a good numerical treatment of the integrals involved, and appropriate linear-equation solver for the cases under consideration should lead to a computer code that gives much better CPU times than those of proposed method in [1]. One of the effective evaluations of single layer integral equation is Nyström method [3][4][5]. Nyström method is some kind of moment method that uses trigonometric approximation of integral equation and exponential convergent property.…”

mentioning

confidence: 99%