Grooved Laminated Waveguide devices for U-, V-, W- and G-band applications

Kärnfelt, Camilla; Coant, Pascal; Sinou, Maïna; Coupez, Jean-Philippe; Bourreau, Daniel; Peden, Alain

doi:10.1109/eumc.2015.7345879

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“…The first ablation process was developed to enable a tight ground plane to via distance and the second ablation step in order to realize the small gap of 30 µm needed for the coplanar measurement probe pads. The second ablation procedure was also described in [7] and proven to work up to 170 GHz in [8].…”

Section: Fabrication Steps and Special Proceduresmentioning

confidence: 99%

A QFN packaged grid array antenna in low dielectric constant LTCC for D-band applications

Kärnfelt

Zhang

Zirath

2016

2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-A

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International audienceA medium-gain Grid Array Antenna (GAA) is developed and manufactured in ESL41110, a low εr Low Temperature Co-fired Ceramics (LTCC) from ElectroScience Laboratory. The antenna dimensions are 12 mm × 12 mm × 0.3 mm and it has a measured impedance bandwidth from 135 to 142 GHz, with a boresight maximum gain of 7.96 dBi and vertical beams. In order to realize this antenna, new LTCC fabrication steps had to be developed and qualified in the in-house procedure, including laser ablation of gold in the green state as well as after sintering

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Section: Fabrication Steps and Special Proceduresmentioning

confidence: 99%