ngVLA Memos

Next Generation Very Large Array Antenna Memos

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Memo Number	Title	Author(s)	Date
1	System-level Cost Comparison of Offset and Symmetric Optics	R. Selina	04/26/19
2	System-level Evaluation of Aperture Size	R. Selina	05/06/19
3	Antenna Optical Design Alternatives	R. Selina, W. Grammer, D. Urbain, S. Sturgis, J. Allison	10/01/19
4	Performance of Dual-Offset Gregorian Antennas with Varying Subreflector Angles	S. Srikanth	06/18/19
5	Measurements of the ngVLA W-band Feed Horns	L. Locke, S. Srikanth, C. Beaudet	07/10/19
6	Efficiency Loss Due to Feed Positioning Errors on the ngVLA Reference Design Antenna	S. Srikanth	04/07/20
7	Axially Corrugated Feed Horns as Radiators for the 1.2 to 12.3 GHz Frequency Range on the ngVLA Reference Design Antenna	S. Srikanth	06/16/20
8	Efficiency Loss and Pointing Offsets Due to Feed Offsets on the ngVLA Reference Design Antenna	S. Srikanth	07/01/20
9	Practical Limits to Axis Offsets	R. Selina	09/03/20
10	Beam Pointing and Efficiency as a Function of Translations and Rotations of Optical Elements on the ngVLA Antenna	S. Srikanth	09/04/20
11	SBA Antenna Pointing Specification for the Conceptual Design	B. S. Mason	07/30/21
12	Verification Testing for the ngVLA 18m Prototype Antenna	J. Mangum	01/11/22
13	NGVLA Antenna On-the-Fly Mapping Use Cases	B. Mason, J. Mangum	02/04/22
14	Long Baseline Antenna Prototype Test Site Selection	R. Selina	02/28/24
15	Long Baseline Antenna Prototype: Antenna Qualification Electronics Concept	R. Selina, et al.	06/11/24
16	Long Baseline Antenna Prototype: DBE Concept	M. Schiller	06/27/24