High-Gain Luneburg Lens on COC Substrate for 300-GHz Applications
- Resource Type
- Authors
- Adham Mahmoud; Jorge Ruiz-Garcia; Olivier de Sagazan; Mauro Ettorre; Ronan Sauleau; David Gonzalez-Ovejero
- Source
- 21st Mediterranean Microwave Symposium (MMS)
21st Mediterranean Microwave Symposium (MMS), May 2022, Pizzo Calabro, Italy. ⟨10.1109/MMS55062.2022.9825518⟩
- Subject
- [SPI]Engineering Sciences [physics]
Luneburg lens
leaky-wave antennas
beam steering
photolithography
Cyclic Olefin Copolymer
polymers
- Language
International audience; A Luneburg lens quasi-optical beam-former is used to excite a leaky-wave antenna at 275 GHz. Both the lens and the antenna are fabricated on a Cyclic Olefin Copolymer (COC) substrate. The full system is etched on the polymer by photolithography. Numerical results show a reflection coefficient lower than -24 dB and a gain higher than 21 dBi over a 40% fractional bandwidth, spanning from 220 GHz to 330 GHz. The efficiency of the antenna is estimated to be 28% at the center frequency (275 GHz).