Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – High frequency waveguides – resonators – electrical networks,...
Patent
1996-04-19
1999-04-20
Lee, Benny T.
Superconductor technology: apparatus, material, process
High temperature devices, systems, apparatus, com- ponents,...
High frequency waveguides, resonators, electrical networks,...
505700, 505701, 505866, 333 99005, 333161, H01P 118, H01B 112
Patent
active
058957758
ABSTRACT:
A microwave grating 10 for a dispersive delay line, the grating comprising: (a) a terminal 12 for receiving a wideband RF signal including multiple RF signals of different frequencies; (b) a primary transmission line 14 capable of carrying the wideband RF signal, the primary transmission line 14 being electrically connected to said terminal 12; and (c) a plurality of non-resonant open-stub transmission lines 16 each having a length 18, the open-stub transmission lines 16 being capacitively loaded on the primary transmission line 14 at spaced locations 20 along the primary transmission line 14. Each open-stub transmission line 16 effects perturbations in the signal carrying capability of the primary transmission line 14 where the open-stub transmission line is located. As such, RF signals of different frequencies propagating through the primary transmission line 14 are reflected back to the terminal 12 of the grating 10 at different points along the primary transmission line 14 where the open-stub transmission lines 16 are located. Preferably, the spacing 22 between a pair of adjacent open-stub transmission lines 16 is substantially equal to a multiple half-wavelength of a selected frequency, whereby an RF signal of said frequency propagating through the primary transmission line 14 is reflected back at a point along the transmission line 14 where the spacing 22 between a pair of open-stub transmission lines 16 is equal to a multiple half-wavelength of the signal.
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Lee Benny T.
TRW Inc.
Yatsko Michael S.
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