A Broadband Ridge Gap Waveguide to Micro-strip Transition Using Probe Current Coupling

Peng, Songtao; Pu, Youlei; Shao, Wei; Wang, Xin; Luo, Yong

doi:10.1109/ivec.2019.8745307

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…However, verticals transition are the only practical solution for phased arrays as they leave the space below the antenna available for PCB routing and active components. Ultra-wideband transitions have also been proposed in [12], [13], but the need for galvanic contact between waveguide and microstrip make them sensitive to assembly [14]. Doubleand single-ridge gap waveguides allow to design narrow waveguide-based radiating elements to be used in phased arrays with wide steering ranges.…”

Section: Introductionmentioning

confidence: 99%

Microstrip to Ridge Gap Waveguide Transition for 28 GHz Steerable Slot Array Antennas

Bagheri¹,

Karlsson²,

Bencivenni³

et al. 2020

2020 14th European Conference on Antennas and Propagation (EuCAP)

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In this paper three types of contactless vertical transitions from microstrip to double ridge waveguide are presented. The designs are compact in size and robust, with improved isolation by employing a pin structure, making them ideal for 5G mmWave phased arrays. All transitions cover the 26.5 − 29.5 GHz band, their dimensions are less than half a wavelength in pitch and have insertion losses less than 0.6 dB. The three designs apply different matching strategies and offer a trade-off between bandwidth and PCB areas. Finally, the behavior within an array configuration is analyzed.

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Section: Introductionmentioning

confidence: 99%

Microstrip to Ridge Gap Waveguide Transition for 28 GHz Steerable Slot Array Antennas

Bagheri¹,

Karlsson²,

Bencivenni³

et al. 2020

2020 14th European Conference on Antennas and Propagation (EuCAP)

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show abstract

“…However, vertical transitions are the only practical solution for phased arrays as they leave the space below the antenna available for PCB routing and active components. Ultra-wideband transitions have also been proposed in [46,47], but the need for galvanic contact between waveguide and microstrip makes them sensitive to assembly [48]. Double-and single-ridge gapwaveguides allow the designing of narrow waveguide-based radiating elements to be used in phased arrays with wide steering ranges.…”

Section: Top Pcb Transitionmentioning

confidence: 99%

28 GHz Gapwaveguide-based Phased Array Antennas for 5G Applications

Bagherimoghim¹

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The fifth generation (5G) of mobile wireless communication aims to provide higher data capacity than the previous generations could. With large frequency bands already licensed at mmWaves, data rates of around 10 Gbit/s can be offered. However, these frequency bands lead to more free space path loss, for example, 20 dB more loss moving from 3 to 30 GHz. Phased array antennas integrated with low-loss antenna elements and high-power front-ends have drawn much attention to compensate for this increased loss.State-of-the-art phased array antennas for mmWave 5G are designed with antenna elements based on a dielectric substrate and employ front-ends with CMOS and SiGe BiCMOS technology. The antenna elements based on a dielectric substrate typically show a high loss at mmWave frequencies and suffer from low bandwidth. The techniques to increase the bandwidth of such antenna elements usually add to the complexity of the structure by increasing the number of layers. This thesis aims to use gapwaveguide technology as the baseline for antenna element design, which is a low-loss, low-cost, and wideband transmission line at mmWave frequencies.In this thesis, a phased array is designed with improved characteristics in terms of low antenna and front-end losses. The objective is to propose a costeffective and scalable phased array while enhancing its complex structure. For 5G communication systems operating at 28 GHz, a high equivalent isotropic radiated power (EIRP) active phased array antenna is proposed. The antenna design is based on the gapwaveguide technology and consists of 16 × 16 single 45 • slant-polarized elements. The proposed design employs a low-complexity printed circuit board (PCB) structure with only six layers, i.e., half of existing wideband solutions. The array antenna incorporates up/down converter integrated circuits (UDCs) and 1 × 4 transceiver beamformer integrated circuits (BFICs). Moreover, a compact and highly efficient transition at the end of each channel of the BFICs has been designed to interconnect the antenna elements with the PCB. The antenna's front-end loss, which includes the feed line, mismatch, and ohmic losses, is only 1.3 dB. The array covers a scanning range of ±60 • in the azimuth plane and ±10 • in the elevation plane. The S 11 < −10 dB frequency bandwidth is from 26.5 − 29.5 GHz. The maximum EIRP of the antenna is 65.5 dBm at the saturation point. The presented design offers a compact, robust, and low-loss performance solution meeting the high v vi Summary x SamenvattingAt the end of this journey, I'm deeply grateful to the many individuals who supported, guided and contributed to this thesis. Their efforts, from mentors to friends, have shaped the growth and outcome of this work.First, I would like to express my deepest appreciation to my main supervisor Senior Associate Professor Andrés Alayón Glazunov for the opportunity to this fruitful PhD journey. His immense support, constructive guidance, and unwavering encouragement have been very valuable throughout this project. Thanks for ...

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Substrate-Less Vertical Chip-to-Waveguide Transition for W-Band Array Antenna Integration

Lijarcio,

Vosoogh,

Vassilev

et al. 2023

2023 17th European Conference on Antennas and Propagation (EuCAP)

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A Broadband Ridge Gap Waveguide to Micro-strip Transition Using Probe Current Coupling

Cited by 3 publications

References 4 publications

Microstrip to Ridge Gap Waveguide Transition for 28 GHz Steerable Slot Array Antennas

Microstrip to Ridge Gap Waveguide Transition for 28 GHz Steerable Slot Array Antennas

28 GHz Gapwaveguide-based Phased Array Antennas for 5G Applications

Substrate-Less Vertical Chip-to-Waveguide Transition for W-Band Array Antenna Integration

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