Boots – shoes – and leggings
Patent
1996-04-10
1996-12-24
Trammell, James P.
Boots, shoes, and leggings
364484, 364485, 364487, 36457104, G01R 2706
Patent
active
055879349
ABSTRACT:
An automatic VNA calibration apparatus is described which requires only a single connection at each of two test ports on a VNA and the pressing of one button. The apparatus comprises a housing for housing electrical components and a multi-throw switch which is controlled by a controller coupled to the housing. The switch is switched between a plurality of positions for coupling to the VNA a series of different calibration and verification components. The components need not be "perfect" standards so long as their values, including the phase shifts which they provide, are accurately measured.
REFERENCES:
patent: 4680538 (1987-07-01), Dalman et al.
patent: 4703433 (1987-10-01), Sharrit
patent: 4816767 (1989-03-01), Cannon et al.
patent: 4853613 (1989-08-01), Sequeira et al.
patent: 4982164 (1991-01-01), Schiek et al.
patent: 5191294 (1993-03-01), Grace et al.
patent: 5276411 (1994-01-01), Woodin, Jr. et al.
patent: 5307284 (1994-04-01), Brunfeldt et al.
patent: 5313166 (1994-04-01), Eul et al.
patent: 5321364 (1994-06-01), Nukiyama et al.
patent: 5336988 (1994-08-01), Chmielewski et al.
patent: 5434511 (1995-07-01), Adamian et al.
patent: 5467021 (1995-11-01), Adamian et al.
Engen, Glenn F., et al., The Multi-State Two Port: An Alternative Transfer Standard, ARFTG Diges, Spring 93.
Abstract: "A Novel Procedure for Network Analyzer Calibration and Verification;" V. Adamian, Jun. 1993.
Product Information Sheet: ATN Microwave, Inc., Jun. 1991.
Antes Todd D.
Brinkoetter Thomas R.
Oldfield William W.
Trammell James P.
Wachsman Hal P.
Wiltron Company
LandOfFree
Automatic VNA calibration apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic VNA calibration apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic VNA calibration apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1183238