Allan Scott Douglas - Tyngsboro MA Peter Anthony Volckman - Milton Keynes, GB
Assignee:
M/A-Com Inc. - Lowell MA
International Classification:
G01S 740
US Classification:
342173, 342165
Abstract:
A method for testing a pulse Doppler radar sensor circuit comprising at least one antenna, and a switch circuit, comprising the steps of 1) configuring said switch circuit such that a first path between an input terminal and a first output terminal and a second path between an input terminal and a second output terminal introduce different phase delays to an input signal, 2) providing an input signal to the switch circuit at said input terminal, and 3) comparing a signal at the first output terminal and a signal at the second output terminal to determine if the sensor circuit is functioning.
Noyan Kinayman - Malden MA, US Allan S. Douglas - Tyngsboro MA, US John F. Cushman - Dracut MA, US
Assignee:
M/A-com, Inc. - Lowell MA
International Classification:
H03H005/00
US Classification:
333 26, 333 21 R
Abstract:
A transition for transmitting a mm-wave signal from one plane to another, the transition comprising: (a) first and second transmission lines on parallel planes; (b) a third transmission line orthogonal to the first and second transmission lines, wherein either the first and second transmission lines are suitable for transmitting a TEM mode signal and the third transmission line is suitable for transmitting a waveguide mode signal, or the third transmission line is suitable for transmitting a TEM mode signal and the first and second transmission lines are suitable for transmitting a waveguide mode signal; and (c) first and second transducers, the first transducer coupled between the first and third transmission lines, the second transducer coupled between the second and third transmission lines, each of the transducers suitable for converting a TEM mode signal to a waveguide mode signal.
Apparatus For Signal Transitioning From A Device To A Waveguide
Xueru Ding - Chelmsford MA, US Allan Scott Douglas - Tyngsboro MA, US
Assignee:
Tyco Technology Resources - Wilmington DE
International Classification:
H01P 5/08
US Classification:
333 26, 333 21 R, 333 33
Abstract:
A signal transmission apparatus includes a first waveguide, a second waveguide and a third waveguide. The transitions between the first, second and third waveguides are substantially co-impedance matched. The signal transmission apparatus may be a multi-port device, and may be used to transition high frequency signals from one component to another in a variety of applications.
Okotoks, ABAfter 20 years of commercial real estate development and property management for the Government of Canada, and almost 15 years as a licensed life and health... After 20 years of commercial real estate development and property management for the Government of Canada, and almost 15 years as a licensed life and health insurance broker, I am moving on. Available for consultation on corporate or personal financial planning, I expect my overhead to be lower and...
criminal network should have been dismantled long before May 2010. Bleeding-heart liberals like the Rt Col Allan Douglas can continue to bury their heads in their uptown sand, safe from the inner cities where innocent residents are held captive by criminal dons who subjugate them in their garrisons.security forces, then some good would have been achieved. I am not unbalanced like Allan Douglas and others who constantly talk about human rights and civil liberties while ignoring the trampling of human rights and civil rights of innocent citizens who are under the domination of shottas in garrisons.