Henrique Schmitt
Research Subjects
Research Interests
Henrique Schmitt has a total of 11 co-authors. Here are the top co-authors by number of shared publications:
- B. Hicks
Naval Research Laboratory, Remote Sensing Division, Code 7213, Washington, DC 20375-5351
1 shared publication - Jake Hartman1 shared publication
- Joseph Craig
Naval Research Laboratory Naval Research Laboratory and Johns Hopkins Applied Physics Laboratory University of New Mexico Virginia Polytechnic Institute and State University University of New Mexico U.S U.S ISKAF2010 Science Meeting June 10 -14 2010 Assen the Netherlands
1 shared publication - Kenneth P. Stewart1 shared publication
- Kurt W. Weiler1 shared publication
- Nagini Paravastu-Dalal1 shared publication
Latest Publications
- Open Access
A wide-band, active antenna system for long wavelength radio astronomy
We describe an "active" antenna system for HF/VHF (long wavelength) radio astronomy that has been successfully deployed 256-fold as the first station (LWA1) of the planned Long Wavelength Array. The antenna system, consisting of crossed dipoles, an active balun/preamp, a support structure, and a ground screen has been shown to successfully operate over at least the band from 20 MHz (15 m wavelength) to 80 MHz (3.75 m wavelength) with a noise figure that is at least 6 dB better than the Galactic background emission noise temperature over that band. Thus, the goal to design and construct a compact, inexpensive, rugged, and easily assembled antenna system that can be deployed many-fold to form numerous large individual "stations" for the purpose of building a large, long wavelength synthesis array telescope for radio astronomical and ionospheric observations was met.
Open AccessA wide-band, active antenna system for long wavelength radio astronomy
We describe an "active" antenna system for HF/VHF (long wavelength) radio astronomy that has been successfully deployed 256-fold as the first station (LWA1) of the planned Long Wavelength Array. The antenna system, consisting of crossed dipoles, an active balun/preamp, a support structure, and a ground screen has been shown to successfully operate over at least the band from 20 MHz (15 m wavelength) to 80 MHz (3.75 m wavelength) with a noise figure that is at least 6 dB better than the Galactic background emission noise temperature over that band. Thus, the goal to design and construct a compact, inexpensive, rugged, and easily assembled antenna system that can be deployed many-fold to form numerous large individual "stations" for the purpose of building a large, long wavelength synthesis array telescope for radio astronomical and ionospheric observations was met.