Design of a Wide Band Eight-Way Compact Siw Power Combiner Fed by a Low Loss GCPW-to-Siw Transition

Kazemi, Robab; Sadeghzadeh, R. A.; Fathy, and Aly

doi:10.2528/pierc11110909

Cited by 13 publications

(9 citation statements)

References 20 publications

(22 reference statements)

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“…An exceptional low loss, wide band GCPW feed to a single layer SIW with a smooth transition was reported in [4]. This design will be further developed here to use as a two-layer RSIW transition.…”

Section: B Gcpw To Siw Transitionmentioning

confidence: 99%

Design of single-ridge SIW power dividers with over 75% bandwidth

Kazemi

Fathy

2014

2014 IEEE MTT-S International Microwave Symposium (IMS2014)

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Waveguide structures have a constrained bandwidth due to their cutoff frequencies and presence of higher order modes. Ridged substrate integrated waveguides (RSIW) are low profile, low cost and planar that can be designed for wider bandwidth. In this paper, a two-way power divider based on RSIW is designed to extend bandwidth beyond that of conventional guides. The design utilizes a developed low loss GCPW to RSIW transition to feed the structure. Design was successfully extended to eight way splitter as well. The developed divider has almost a 75% bandwidth with better than 15dB return loss from 5 to 11 GHz. In particular, the splitter demonstrated excellent amplitude and phase imbalance of less than ±O.35 dB and ±7° within 5.5 to 9 GHz, respectively.Theoretical and experimental results are in good agreement.

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Section: B Gcpw To Siw Transitionmentioning

confidence: 99%

Design of single-ridge SIW power dividers with over 75% bandwidth

Kazemi

Fathy

2014

2014 IEEE MTT-S International Microwave Symposium (IMS2014)

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“…A number of inductive posts have been used too to minimise the reflections at the common port and improve input matching. In addition, we have followed a similar strategy to that of [4], where a low return loss and an equal power division can be obtained by Fig. 8d.…”

Section: Rsiw T-junctionmentioning

confidence: 99%

“…The whole structure was fabricated using a single layer RO4003c substrate with a thickness of 1.524 mm. The measured results of the splitter showed an acceptable performance over 8-12 GHz (40% bandwidth), and a maximum amplitude and phase imbalance of ± 0.9 dB and ±4°, respectively [4]. Similarly, Song [5] developed various SIW splitters, for example very wide four-way splitter with over 66% bandwidth, and subsequently an eight-way splitter with <1 dB insertion loss over 23% bandwidth [6], but they are geared towards active devices use.…”

Section: Introductionmentioning

confidence: 99%

Design of a wideband eight‐way single ridge substrate integrated waveguide power divider

Kazemi

Fathy

2015

IET Microwaves, Antennas & Propagation

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Recently, a low‐loss X‐band eight‐way compact substrate‐integrated‐waveguide (SIW) power combiner was developed with about 40% bandwidth. To further widen the operating bandwidth, ridges can be added to form a ridge SIW (RSIW). RSIW has many advantages, such as a low profile, light weight, low cost and planar structure and wide bandwidth. In this study, a 1 to 8 splitter for an array antenna feed based on RSIW technology has been designed and fabricated that encompasses an extended bandwidth beyond that of the conventional guides. The divider is comprised of a GCPW to RSIW transition, RSIW T‐junction and 90° bend and has demonstrated over a 65% bandwidth with better than 10 dB return loss from 5 to 10 GHz. In particular, it demonstrated excellent amplitude and phase uniformity with less than ±0.3 dB and ±5° imbalance, respectively, within 5.5 to 9.6 GHz.

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“…In fact, a considerable number of SIW based devices designed using commercial codes, like HFSS (Ansys HFSS), have been presented over the years. Filters [2-4, 23, 24], power dividers [5][6][7], antennas [8,9,25] and other devices have been successfully designed and realized. However, more effective analysis methods can be devised implementing techniques that, even less general than the one used in commercial codes, are more efficient in terms of both CPU time and occupied memory.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Lossy Siw Structures Based on the Parallel Plates Waveguide Green's Function

Amendola

Arnieri²,

Boccia³

2012

PIER C

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Abstract-In this paper, a full-wave analysis technique of lossy substrate integrated waveguides, based on the dyadic Green's function of the parallel plate waveguide, is presented. The field inside the waveguide is expressed in terms of cylindrical vector wave-functions and the finite conductivity of the top and of the bottom plates, and of the metallic vias are taken into account. Losses into the dielectric substrate are also included. Coaxial ports are considered as sources and self and mutual admittances are evaluated. Cases of practical structure taken from literature are presented showing a very good agreement with the most used commercial software.

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Design of a Wide Band Eight-Way Compact Siw Power Combiner Fed by a Low Loss GCPW-to-Siw Transition

Cited by 13 publications

References 20 publications

Design of single-ridge SIW power dividers with over 75% bandwidth

Design of single-ridge SIW power dividers with over 75% bandwidth

Design of a wideband eight‐way single ridge substrate integrated waveguide power divider

Analysis of Lossy Siw Structures Based on the Parallel Plates Waveguide Green's Function

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