An f/0.27 High-Gain Lens Antenna for Ultrasmall Platforms at THz Frequencies

The development of a low focal number and low-mass lens antenna is presented that enables terahertz spectroscopy applications on ultracompact platforms. The antenna operates efficiently over a 20% fractional bandwidth, from 450 to 550 GHz, with a gain of 50 dBi at 500 GHz. The antenna consists of a hyperbolic silicon lens that is placed in a...

Efficient Waveguide Feeds for Low-Profile Submm-wave Lens Antennas

A small volume and low-mass THz spectroscopy instrument, integrated in a CubeSat platform, enables an accessible and low-cost pathway to earth science. Low-profile lens antennas emerge as a suitable candidate to realize a high gain, 50 dB, over a wide bandwidth, from 450 GHz to 550 GHz. To achieve a high aperture efficiency with a large...

Wideband Multi-Mode Leaky-Wave Feed for Scanning Lens Phased Array at Submillimeter Wavelengths

In this article, we propose a hybrid electromechanical scanning lens antenna array architecture suitable for the steering of highly directive beams at submillimeter wavelengths with field-of-views (FoV) of ±25°. The concept relies on combining electronic phase shifting of a sparse array with a mechanical translation of a lens array. The use...

Sub-Orbital Flight Demonstration of a 183/540–600 GHz Hybrid CMOS-InP and CMOS-Schottky-MEMS Limb-Sounder

This paper presents an overview of a sub-orbital flight demonstration with a 183 GHz and 540–600 GHz limb-sounding instrument aboard a stratospheric ballooncraft. The 183 GHz band provides soundings of stratospheric H 2 O and is implemented with a hybrid CMOS-InP receiver architecture which provides excellent sensitivity while remaining compact ...

550 GHz Scanning Lens Phased Array

In this contribution, we present the progress towards developing two submillimeter-wave prototypes of a scanning lens phased array. This recently-proposed array architecture can achieve high-gain, wide-scan radiation patterns with low sidelobes and only a few active elements. Measurements<br/>are presented for a prototype lens antenna at 550 GHz.

Beam Scanning of Silicon Lens Antennas Using Integrated Piezomotors at Submillimeter Wavelengths

This paper presents a lens antenna that scans the beam using an integrated piezomotor at submillimeter-wave frequencies. The lens antenna is based on the concept presented by Llombart et al. in 2011, a leaky-wave waveguide feed in order to achieve wide angle scanning and seamless integration with the receiver. The lens is translated from the...

Dual-band leaky-wave lens antenna for submillimeter-wave heterodyne instruments

In this contribution, we propose an antenna for a dual-band focal plane array (FPA) heterodyne receiver at 210-240 GHz and 500-580 GHz to perform cometary observations. The proposed antenna is composed of a fused silica lens fed by a leaky wave waveguide feed. The dual-band leaky wave feed is based on a single-layer Frequency Selective...

Scanning lens phased array for submillimeter wavelengths

In this contribution, we propose a hybrid electromechanical scanning antenna array architecture suitable for highly directive phased arrays at submillimeter wavelengths with field-of-views (FoV) of+/-30 degrees. The concept relies on combining electrical phase shifting of a sparse array with a mechanical translation of an array of lenses. The...

Micro-Lens Antenna Integrated in a Silicon Micromachined Receiver at 1.9 THz

This article presents the latest developments of our work related to a micro-lens antenna integrated in a heterodyne receiver using silicon micromachining technology at Terahertz frequencies. The antenna is composed of a waveguide feed which uses a leaky wave cavity to enhance the directivity and illuminate a shallow lens efficiently. The...