Substrateless Amplifier Module Realized by Ridge Gap Waveguide Technology for Millimeter-Wave Applications

Ahmadi, Behzad; Banai, Ali

doi:10.1109/tmtt.2016.2607177

Cited by 41 publications

(16 citation statements)

References 14 publications

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“…Also, one of the key aspects of this technology is its flexibility to be integrated with all kind of RF electronic components. In this sense a recent article about the integration of an amplifier with the ridge version is a first step to the future development of complete front-ends in gap waveguide technology [14]. The packaging implicit in the technology has evident advantages when dealing with active components.…”

Section: Millimeter Wave Componentsmentioning

confidence: 99%

Gap Waveguide Technology for Millimeter-Wave Antenna Systems

2018

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Millimeter wave communication systems require many innovative antennas adapted for the future application scenarios such as the upcoming 5G cellular networks. Due to the strong path loss in free space at millimeter wave frequency range, high gain and low cost antennas are of great demand. Also, advanced features such as multi-beam for multiple user, dual-pol or even complete phased arrays with enormous degrees of freedom in beamforming are some of the key research lines for antenna designers nowadays. In this paper an overview of a new type of family of low loss antennas and components based on the recently developed gap waveguide technology is presented. With the advent of new millimeter wave applications, this low cost and low loss waveguide technology can be considered as a good candidate to be used as the core RF building block.Index Terms-Gap waveguide Technology, millimeter wave antennas, millimeter wave components.

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Section: Millimeter Wave Componentsmentioning

confidence: 99%

Gap Waveguide Technology for Millimeter-Wave Antenna Systems

2018

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“…17 Loss of an RGW is much lower than that of a microstrip line and is in the order of that of a standard hollow rectangular waveguide, 16 it's also broad bandwidth, low sensitivity to manufacturing errors, usable at high frequency, easy integration of active components, and so forth 18 and Until now many researches have been done on RGW-based active and passive microwave and mm-wave components. [19][20][21][22][23][24][25][26] In this paper a Ku-band 3-way BPD based on RGW technology is proposed and experimentally demonstrated for the first time, to the best of our knowledge. The proposed RGW-based BPD can be extended to an N-way power divider.…”

Section: Introductionmentioning

confidence: 99%

“…To overcome these issues, the ridge gap waveguide (RGW) has been introduced in 2009 17 . Loss of an RGW is much lower than that of a microstrip line and is in the order of that of a standard hollow rectangular waveguide, 16 it's also broad bandwidth, low sensitivity to manufacturing errors, usable at high frequency, easy integration of active components, and so forth 18 and Until now many researches have been done on RGW‐based active and passive microwave and mm‐wave components 19‐26 …”

Section: Introductionmentioning

confidence: 99%

Bagley polygon power divider realized by ridge gap waveguide technology

Nobandegani

Hosseini

2021

Micro & Optical Tech Letters

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The novel ridge-gap waveguide (RGW) technology which uses a full metal structure has many advantages in micro/mm-wave frequencies such as low loss, broad bandwidth, low sensitivity to manufacturing errors, and easy integration with active components, and so forth. In this paper, a Ku-band 3-way Bagley polygon power divider (BPD) is proposed and experimentally demonstrated based on the RGW technology for the first time, to the best of our knowledge. An RGW-toWR62 transition is also designed and fabricated. The proposed threeway RGW-based BPD with WR62 transitions shows low-loss equal-power division in phase with good impedance matching and isolation between output ports in the Ku band. The proposed RGW-based BPD can be extended to an N-way power divider.

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“…Recently, gap waveguide technology based on the theory of PEC/PMC parallelplate configuration was proposed in [16] as an innovative technology well suited for millimeter-wave RF applications with promising characteristics and potential to overcome aforementioned challenges. Reviewing the literature revealed that several passive components based on gap waveguide technology have been presented over the past few years, such as high gain and high efficiency planar array antennas [17]- [19], High Q filters [20]- [22], couplers [23], [24] and packaging [25].…”

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of Wideband Millimeter-Wave Directional Couplers With Different Coupling Factors Based on Gap Waveguide Technology

2019

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A class of wideband directional couplers suitable for achieving different coupling levels are proposed in this paper. The proposed couplers have been implemented using the double-layer groove gap waveguide at the millimeter-wave frequency range. They are composed of two parallel groove gap waveguide parts placed on top of each other in such a way that the coupling between the two waveguide sections can be achieved via the coupling structures placed in the common wall. Usually, the coupling layer consists of two rows of holes and depending on the number of holes the coupling levels can be controlled. The manifest and applicable property of the proposed directional coupler is that the coupling level can be simply changed using the different coupling layers without changing the top and bottom groove waveguides and transitions. As another significant advantage of the proposed coupler, there is no requirement of good electrical contact among different metallic parts of the structure, which considerably simplifies the manufacturing processes and mechanical assembly at millimeter-waves applications. For verification purpose, three sample couplers with coupling levels of 10, 20, and 30 dB have been designed, fabricated, and measured. To make the device accessible and measurable using the standard rectangular waveguides, two types of transitions from the groove gap waveguide to standard WR-15 are designed. The simulation and experimental results are in good agreement and show that the proposed couplers have large bandwidth for return loss level of 20 dB, coupling level of 10±1, 20±1, and 30±1 dB, and isolation level of 30, 35, and 40 dB over the desired frequency band of 50-70 GHz. The proposed directional couplers can be used as good candidates at millimeter-wave frequencies for probing and the design of compact integrated microwave circuits and systems, such as antenna array feeding networks.INDEX TERMS Directional coupler, gap waveguide technology, millimeter wave, V-band applications.

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Substrateless Amplifier Module Realized by Ridge Gap Waveguide Technology for Millimeter-Wave Applications

Cited by 41 publications

References 14 publications

Gap Waveguide Technology for Millimeter-Wave Antenna Systems

Gap Waveguide Technology for Millimeter-Wave Antenna Systems

Bagley polygon power divider realized by ridge gap waveguide technology

Design and Fabrication of Wideband Millimeter-Wave Directional Couplers With Different Coupling Factors Based on Gap Waveguide Technology

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