منابع مشابه
Mixer-Preamp to Receiver Interface Considerations for ALMA Band 6
The NRAO CDL is preparing to construct test receivers for use in production of the Band-6 mixer-preamps for ALMA. The discussion below applies primarily to the mixer-preamp to test receiver interface, but should also be useful as a guide to the mixer-preamp interface with the cartridges all the listed connections will be available on the mixer-preamp and can be used as desired by the cartridg...
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A Workshop was held in Tucson in September 2000 to define a layout for the optics and dewar. Section 3 lists the design goals for the Workshop, and the configuration that emerged is detailed in this document. This includes the overall arrangement, and the details of the optics of the individual Bands. These bands are those defined by Wootten et al. [1] and endorsed with minor adjustment for Ban...
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We present the design of ALMA Band 5 sideband separation mixer based on Niobium superconducting SIS junctions and first experimental results for the double side band mixer. In this mixer the LO injection circuitry is integrated on the mixer substrate using a microstrip line directional coupler with slot-line branches in the ground plane. The isolated port of the LO coupler is terminated by a wi...
متن کاملTypical Ka band Satellite Beacon Receiver Design for Propagation Experimentation
This paper presents the design and simulation of a typical Ka band satellite beacon receiver for propagation experimentation. Using satellite beacon signal as a reference signal in satellite wave propagation study, is one of the most important methods. Satellite beacons are frequently available for pointing large antennas, but such signals can be used for measuring the effect of natural phenome...
متن کاملA Japanese Plan of Receiver Developments for LMSA/ALMA
We present a baseline plan of Japanese receiver developments for the Large Millimeter Submillimeter Array (LMSA) and the Atacama Large Millimeter Array (ALMA). Two receiver cartridge layouts for ALMA band 8 (385 – 500 GHz) have been proposed based on a quasi-optical sideband separation. These cartridges will be evaluated in a secondary focal receiver system with the Atacama Submillimeter Telesc...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2018
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201731883