H-Plane Crossed-Waveguide Hybrids

Toda, K.; Ohta, Isao; Kishihara, Mitsuyoshi

doi:10.1109/eumc.2006.281088

Cited by 24 publications

(17 citation statements)

References 6 publications

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“…The validity of the analysis and the design results are confirmed using an em-simulator (HFSS). Moreover, a cruciform SIW quadrature hybrid (Ohta et al, 2007) is designed based on the idea similar to an H-plane crossed-waveguide quadrature 3-dB hybrid (Toda et al, 2006). The SIW has a planar structure parallel to the plane of magnetic field, and the electromagnetic field in the circuit dose not change in the direction perpendicular to the magnetic plane (H-plane).…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of SIW Components Based on H-Plane Planar Circuit Approach

Ohta¹,

Kishihara²

2010

Passive Microwave Components and Antennas

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Section: Introductionmentioning

confidence: 99%

Analysis and Design of SIW Components Based on H-Plane Planar Circuit Approach

Ohta¹,

Kishihara²

2010

Passive Microwave Components and Antennas

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“…As stated in [7], the two posts diagonally across the junction (posts 2 and 5 in Fig. 2) determine the coupling ratio between ports 2 and 3.…”

Section: A Unequal Amplitudementioning

confidence: 99%

“…Using the methods provided in [6] and [7], the design in Fig. 2 was produced with dimensions shown in Table II.…”

Section: Equal Combinationmentioning

confidence: 99%

“…These inductive windows are replaced by inductive posts in [7], reducing the complexity even further.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, a 2-way power combiner is proposed based on the topology in [7], but adapted to perform as in-phase equal power combiner. Furthermore, the fixed inductive posts are replaced by screw-in posts, which allows for compensation of unequal amplification or group delay in the amplifiers inside the combiner post-production.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Waveguide power combiner with adjustable amplitude and phase response

Stander

Sinha

2013

2013 23rd International Conference Radioelektronika (RADIOELEKTRONIKA)

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Abstract-Maximum gain from combining multiple high-power signals is achieved by equalising both the amplitude and phase of the combination. Achieving in-phase and equal amplitude power combining with amplifiers of unequal gain and group delay requires compensation by means of delay lines and external gain adjustment. This paper proposes an improved X-band waveguide H-plane cross-guide combiner which allows for post-production adjustment of the combining power ratio, as well as equalization of the phase responses. This adjustment capability allows for mass-production of the combiner, irrespective of the exact phase and gain characteristics of individual amplifiers. The nominally equal amplitude combining ratio is shown to be adjustable by ±0.4 dB over 400 MHz bandwidth at X-band, whilst the phase difference may be altered, independently from the amplitude response, from -2.52° to +2.52°. Good agreement is found between simulated and measured results.

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Fabrication of a PTFE-filled waveguide for millimeter-wave components using SR direct etching

et al. 2008

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PTFE is widely used as a microwave and millimeter-wave material. However, it is known that PTFE is a difficult material to cut at high precision by conventional machining, or even by laser cutting or electrical discharge machining. It has been reported that PTFE microstructures can be fabricated by direct exposure to synchrotron radiation. A metallic waveguide is one of effective media guiding a millimeter-and submillimeter-wave because of the advantage of low loss. In this paper, the SR direct etching of PTFE is introduced and a trial fabrication of millimeter-wave PTFE waveguide is attempted.

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H-Plane Crossed-Waveguide Hybrids

Cited by 24 publications

References 6 publications

Analysis and Design of SIW Components Based on H-Plane Planar Circuit Approach

Analysis and Design of SIW Components Based on H-Plane Planar Circuit Approach

Waveguide power combiner with adjustable amplitude and phase response

Fabrication of a PTFE-filled waveguide for millimeter-wave components using SR direct etching

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