Broadband eight-way coaxial waveguide high power combiner/divider

Abdolahi, Mohsen; Sabahi, Mohammad Mahdi; Pourgholamhossein, Zohre; Sadeghi, Hamid Mirmohammad

doi:10.1109/piers.2017.8262050

Cited by 4 publications

(1 citation statement)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These techniques are based on dedicated structures capable of dividing/combining the input/output signal to/from those devices. Many works found in the literature propose the use of radial [5][6][7] or coaxial dividers/combiners, both in circular waveguide [8][9][10] and square waveguide [11,12]. They can be easily adapted to integrate a large number of high-power devices, while their bandwidth performance can be optimized from narrow to multi-octave bands, as well.…”

Section: Introductionmentioning

confidence: 99%

Full-Band Oversized Turnstile-Based Waveguide Four-Way Power Divider/Combiner for High-Power Applications

et al. 2019

View full text Add to dashboard Cite

Very high-power and high-efficiency microwave applications require waveguide structures to combine/divide the power from/to a variable number of high-power solid-state devices. In the literature, among the different waveguide configurations, those capable of providing the maximum output power show a limited relative bandwidth. To overcome this limitation, in this paper a full-band (40%) waveguide power divider/combiner specifically designed for high-power applications (up to several kW) is presented. The proposed structure uses an evolved turnstile junction with a standard rectangular waveguide common port, rotated 45°, with respect to its central axis, to divide/combine the signal to/from the four output/input rectangular ports. The inclusion of an oversized central cavity together with circular and rectangular waveguide impedance transformers at the common port allows the achievement of a full-band operation with excellent electrical performance, while maintaining a very simple and compact configuration. Only two layers of metal are required for the physical implementation of this structure in platelet configuration. A prototype has been designed covering the full Ka-band (26.5–40 GHz), showing an excellent measured performance with around 30 dB of return loss, 0.18 dB of insertion loss, and less than 1.5° of phase imbalance.

show abstract

Section: Introductionmentioning

confidence: 99%

Full-Band Oversized Turnstile-Based Waveguide Four-Way Power Divider/Combiner for High-Power Applications

et al. 2019

View full text Add to dashboard Cite

show abstract

Design of super wide band 3‐way power divider/combiner

Mungara,

Ray

2024

IET Microwaves Antenna & Prop

View full text Add to dashboard Cite

A 1:3‐way power divider/combiner has been proposed for much improved bandwidth and isolation between output ports. The matching network for the super wide bandwidth frequency range is designed using a combination of the Klopfenstein taper and the triangular taper. The proposed design yields bandwidth from 1.5 to 20 GHz (18.5 GHz) for return loss better than 15 dB and isolation better than 20 dB. The insertion loss for the entire frequency band is 0.8 dB which is only 0.34 dB for the ultra‐wide bandwidth (3.1–10.6 GHz). The maximum phase imbalance of 3.32° and amplitude imbalance of 0.199 dB between all the output ports have been achieved over the entire bandwidth. The simulated results have been validated experimentally.

show abstract