Year: 2026
Type: article
Abstract: This paper presents the design of a wideband pyramidal inverted glass resonator antenna (PIGRA) for sub-terahertz applications. The proposed glass antenna concept is demonstrated through two implementations: (i) a single radiator integrated on a single-layer glass Printed Circuit Board (PCB) based on a glass-on-glass architecture, and (ii) a 4 times 4 $4\times4$ 4 × 4 planar square PIGRA array implemented on a two-layer Rogers CLTE substrate. The single-radiator implementation achieves an impedance bandwidth exceeding 42 percent sign $42\,\mathrm{\%}$ 42 % , covering the entire D-band ( 110 $110$ 110 – 170 GHz $170\,\mathrm{GHz}$ 170 G H z ), with a peak realized gain of 5.8 dBi $5.8\,\mathrm{dBi}$ 5.8 d B i . The 4 times 4 $4\times4$ 4 × 4 array achieves a 38 percent sign $38\,\mathrm{\%}$ 38 % impedance bandwidth in D-band, and a peak realized gain of
Authors: Mario Faliero, Thomas Zwick, Akanksha Bhutani
Institution: Karlsruhe Institute of Technology
Language: English
Topic: Antenna Design and Analysis
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,550
OpenAlex ID: W7225392029