ferrite switch

ferrite switch

[′fe‚rīt ′swich]
(electromagnetism)
A ferrite device that blocks the flow of energy through a waveguide by rotating the electric field vector 90°; the switch is energized by sending direct current through its magnetizing coil; the rotated electromagnetic wave is then reflected from a reactive mismatch or absorbed in a resistive card.
References in periodicals archive ?
Tender announced by EUROPEAN SPACE AGENCY (ESA), France for High power x/ku-band ferrite switch - expro plus.
Given the targeted specifications the only technology that could meet the stringent requirements is the ferrite switch.
Under the terms of the contract, financial details of which were not available, EMS is scheduled to deliver a ferrite switch and driver electronics to meet Thales Alenia Space's 2013 launch date.
The Tandem-rotator Reciprocal ferrite switch uses 0[degrees] and 90[degrees] total Faraday rotation states to achieve reciprocal connections to the desired ports.
Under the terms of the contract, EMS is slated to deliver a ferrite switch and driver electronics to meet Thales Alenia Space's 2013 launch date.
The chief advantages of the ferrite switch are low insertion loss, high power handling capability and low DC power consumption.
3-5) One of the more unusual applications was and still is for Dicke Radiometers, (6) where the ferrite switch introduces very little thermal noise.
Hot switching is possible, as the ferrite switch will not be damaged by applied power during a switching event, which is on the order of 1 [micro]s.
A new family of ferrite switch products addresses these critical performance areas by utilizing a patent-pending technique to minimize the size of the internal transitions within networks.
The same process used to reduce the size of the triad switch networks has been applied to a product that is a ferrite switch equivalent to a mechanical "C" or "R" (transfer) switch.
Using the traditional design techniques, a ferrite switch network of this complexity would he quite large, but this miniaturized WR-28 switch network is approximately the same size as a WR-28 mechanical switch, with a base of 1.
4] The cost of a multijunction ferrite switch assembly can be as low as $100 per junction.