Monolithically Fabricated 4096-Element, PolyStrata<sup>®</sup> Broadband D-band Array Demonstrator

Jordan, Jared Williams; Lynch, S.; Clark, Michael G.; Cannon, Benjamin L.; Adames, Luis A.; Wrenn, Darel; Jackson, Kimberly; Erickson, N. R.; Clough, Justin; Brown, Darryl K.; Rollin, Jean-Marc; López, Pierre; Boutet, P.; Moretto, Maurizio

doi:10.1109/mwsym.2019.8700988

Cited by 8 publications

(4 citation statements)

References 9 publications

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“…The corporate BFN is the main contributor to the loss in a waveguide array antenna [8], [25] due to the long waveguide sections. This loss is the main limiting factor for the maximum gain that can be achieved with a corporate feed 2 n ×2 n element array, and the maximum theoretical gain as a function of n can be written as…”

Section: Measurement Resultsmentioning

confidence: 99%

A 38 dB Gain, Low-Loss, Flat Array Antenna for 320–400 GHz Enabled by Silicon-on-Insulator Micromachining

Gomez-Torrent

Tomura

Kuramoto

et al. 2020

IEEE Trans. Antennas Propagat.

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Two high-gain flat array antenna designs operating in the 320-400 GHz frequency range are reported in this article. The two antennas show the measured gains of 32.8 and 38 dBi and consist of a 16 × 16 (256) element array and a 32 × 32 (1024) element array, respectively, which are fed by a corporate H-tree beamforming network. The measured operation bandwidth for both antennas is 80 GHz [22% fractional bandwidth (FBW)], and the total measured efficiency is above −2.5 dB and above −3.5 dB for the two designs in the whole bandwidth. The low measured loss and large bandwidth are enabled by optimizing the designs to the process requirements of the silicon on insulator (SOI) micromachining technology used in this article. The total height of the antennas is 1.1 mm (1.2 λ at the center frequency), with sizes of 15 mm × 18 mm and 27 mm × 30 mm for both arrays. The antennas are designed to be directly mounted onto a standard WM-570 waveguide flange. The design, fabrication, and measurements of eight prototypes are discussed in this article and the performance of the antennas compared to the simulated data, as well as manufacturability and fabrication repeatability are reported in detail.

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Section: Measurement Resultsmentioning

confidence: 99%

A 38 dB Gain, Low-Loss, Flat Array Antenna for 320–400 GHz Enabled by Silicon-on-Insulator Micromachining

Gomez-Torrent

Tomura

Kuramoto

et al. 2020

IEEE Trans. Antennas Propagat.

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show abstract

“…Numerous efforts have been made to design mm-wave arrays capable of high-efficient and wide-angle beam steering [2]. The most prospective design approaches suggest employing full-metal radiating structures as having the lowest dissipative losses [3], [4], [5]. At the same time, using full-metal waveguide (WG) arrays poses a significant challenge of front-end monolithic microwave integrated circuits (MMICs) integration.…”

Section: Introductionmentioning

confidence: 99%

A Compact and Wideband MMIC-to-Ridge Gap Waveguide Contactless Transition for Phased Array Antenna Front Ends

Vilenskiy,

Zhang

2024

Antennas Wirel. Propag. Lett.

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A concept of a contactless in-line transition between a monolithic microwave integrated circuit (MMIC) and a ridge gap waveguide (RGW) is proposed and investigated at W-band. The transition employs an E-plane waveguide bifurcation obtained by mounting a GaAs MMIC on a supporting PCB in the opening of an RGW top metal lid. Designed this way, multiple contactless transitions can be placed in a row with an electrically small spacing that makes the transition idea suitable for array antenna front-ends. A transition equivalent circuit is constructed employing a single-mode transmission line model, which is verified through a full-wave simulation. An (85-105) GHz transition design is then developed and experimentally investigated in the back-to-back configuration indicating a (0.5-0.75) dB transition insertion loss. Finally, the performance of a 1-bit phase shifter MMIC, integrated into the RGW using two proposed transitions, is demonstrated.

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“…On the other hand, W-/D-band full-metal PAAs have been proposed recently demonstrating higher radiation efficiency (≥ 50%) and potential wide-scan ability. [5]- [7]. More recently, we have demonstrated several full-metal PAAs based on the open-ended ridge gap waveguide (RGW) [8], [9].…”

Section: Introductionmentioning

confidence: 99%

Mutual Coupling Analysis of Open-Ended Ridge and Ridge Gap Waveguide Radiating Elements in an Infinite Array Environment

Zhang

Vilenskiy

Ivashina

2022

2022 52nd European Microwave Conference (EuMC)

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In this paper, we discuss mutual coupling effects in 2-D beam-steerable antenna arrays based on open-ended ridge and ridge gap waveguide radiating elements. Considering potential applications for beyond-5G systems in W-/D-band, the radiating elements are designed full-metal realizing a high radiation efficiency. Various decoupling structures based on electromagnetic soft surfaces are applied to suppress the surface waves over the array apertures. The infinite array approach is used to analyze antenna unit cells in an isosceles triangular lattice, which results in the active reflection coefficient over a scan and frequency range. The latter is used to extract the values of the mutual coupling coefficients between the elements. The analysis demonstrates the effect of decoupling structures realizing a steep drop of the mutual coupling magnitude (≤ −20 dB) for closely-spaced array elements. This results in a wideband (≥ 20%) and wide-scan (≥ 50 o ) element beam-steering performance.

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Monolithically Fabricated 4096-Element, PolyStrata^® Broadband D-band Array Demonstrator

Cited by 8 publications

References 9 publications

A 38 dB Gain, Low-Loss, Flat Array Antenna for 320–400 GHz Enabled by Silicon-on-Insulator Micromachining

A 38 dB Gain, Low-Loss, Flat Array Antenna for 320–400 GHz Enabled by Silicon-on-Insulator Micromachining

A Compact and Wideband MMIC-to-Ridge Gap Waveguide Contactless Transition for Phased Array Antenna Front Ends

Mutual Coupling Analysis of Open-Ended Ridge and Ridge Gap Waveguide Radiating Elements in an Infinite Array Environment

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Monolithically Fabricated 4096-Element, PolyStrata® Broadband D-band Array Demonstrator

Cited by 8 publications

References 9 publications

A 38 dB Gain, Low-Loss, Flat Array Antenna for 320–400 GHz Enabled by Silicon-on-Insulator Micromachining

A 38 dB Gain, Low-Loss, Flat Array Antenna for 320–400 GHz Enabled by Silicon-on-Insulator Micromachining

A Compact and Wideband MMIC-to-Ridge Gap Waveguide Contactless Transition for Phased Array Antenna Front Ends

Mutual Coupling Analysis of Open-Ended Ridge and Ridge Gap Waveguide Radiating Elements in an Infinite Array Environment

Contact Info

Product

Resources

About

Monolithically Fabricated 4096-Element, PolyStrata^® Broadband D-band Array Demonstrator