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Tunable filter having capacitively coupled tuning elements
Tunable filter having capacitively coupled tuning elements
Filed: November 20th, 1992 [Granted]
Assignee: Motorola Inc
Patent Number: 5392011
... TUNABLE FILTER HAVING CAPACnTVELY COUPLED TUNING ELEMENTS [75] Inventor: Richard C. Li, Plantation, Fla. [73] Assignee: Motorola, Inc., Schaumburg, 111.
Q control for capacitively coupled MRI/MRSI RF coil
Q control for capacitively coupled MRI/MRSI RF coil
Filed: September 18th, 1990 [Granted]
Patent Number: 5172061
There are many specific types of RF coil structures 60 and of RF capacitively coupled tuning and matching circuits normally associated with the coil.
Tuning a test trace configured for capacitive coupling to signal traces
Tuning a test trace configured for capacitive coupling to signal traces
Filed: May 24th, 2006 [Pending]
Patent Application Number: 11440383
Correspondingly, in one embodiment, tuning one or more circuit characteristics of a given test trace 150 may include selecting a degree of capacitive ...
RFID TAG ANTENNA WITH CAPACITIVELY OR INDUCTIVELY COUPLED TUNING COMPONENT
RFID TAG ANTENNA WITH CAPACITIVELY OR INDUCTIVELY COUPLED TUNING COMPONENT
Filed: November 18th, 2009 [Pending]
Patent Application Number: 12621278
As illustrated in the graphs, the impedance can be tuned using the capacitively coupled overlap between tuning component 64 and radiating component 62 .
Tuning arrangement for a microwave device
Tuning arrangement for a microwave device
Filed: May 1st, 2002 [Granted]
Patent Number: 6750730
However, this is not critical 15 because of tunable capacitive coupling between the tuning portion 54 and the housing 14. By rotating the tuning element 52 ...
TUNING MEANS
TUNING MEANS
Filed: October 10th, 1944 [Granted]
Patent Number: 2490836
In a high frequency circuit, a pair of con- shaft in capacitive coupling relation ... A high frequency tuning unit comprising a 30 connecting said stators, ...
Rf capacitively-coupled electrodeless light source
Rf capacitively-coupled electrodeless light source
Filed: August 25th, 1999 [Granted]
Patent Number: 6130512
A further object of the present invention is to provide an rf capacitively- coupled electrodeless light source that incorporates a tuner as both part of the ...
Antenna with variably tuned parasitic element
Antenna with variably tuned parasitic element
Filed: May 9th, 2002 [Granted]
Assignee: Motorola Inc
Patent Number: 6765536
These parasitic elements are connected to a tuning load at one end, as with the capacitively coupled elements, but grounded at the opposite 40 end.