BRIAN WALKER
Nursing in Albuquerque, NM
License number
New Mexico A-0494
Category
Nursing
Type
Skilled Nursing Facility
Address
Address
10101 Lgrma Oro Rd NE, Albuquerque, NM 87111
Phone
(505) 332-6110
Professional information
Owner, Anythings A Trophy Taxidermy
Position:
Owner at anythings a trophy taxidermy
Location:
Albuquerque, New Mexico Area
Industry:
Building Materials
Work:
anythings a trophy taxidermy
-
Owner
Bandwidth Agile, Dielectrically Loaded Resonator Filter
US Patent:
5055808, Oct 8, 1991
Filed:
Sep 21, 1990
Appl. No.:
7/586471
Inventors:
Brian C. Walker - Albuquerque NM
Robert J. Munn - Albuquerque NM
Robert J. Munn - Albuquerque NM
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H01P 1202
US Classification:
333207
Abstract:
A bandwidth agile, dielectrically loaded resonator filter is disclosed in which conductive strips (320, 322), plated on the top surface (302) of the filter and disposed between resonators (310, 312, 314), are selectively switched to ground in order to affect a change in the bandwidth without appreciably changing the center frequency of the filter response. PIN diode switching networks (316, 318), including a means for biasing the diode, are used to effectively ground the strips between the nearly quarter-wavelength transmission line resonators contained within the block (300) of the filter, thereby capturing a portion of the capacitive coupling (402, 404) which occurs mostly beneath the surface of the filter between adjacent resonators.
Ceramic Filter With Channeled Features To Control Magnetic Coupling
US Patent:
5602518, Feb 11, 1997
Filed:
Mar 24, 1995
Appl. No.:
8/410024
Inventors:
David G. Clifford - Albuquerque NM
Brian C. Walker - Albuquerque NM
Brian C. Walker - Albuquerque NM
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H01P 1205
US Classification:
333202
Abstract:
A ceramic filter (120) with at least one transmission zero is disclosed. The filter (120) has a filter body comprising a block of dielectric material and having top (110), bottom (112), and side surfaces, and having metallized through-holes extending from the top to the bottom surfaces defining resonators. The surfaces are substantially covered with a conductive material defining a metallized layer. The top surface (110) is uncoated. The filter (120) can also include input-output pads ( 104, 106). The bottom surface (112) has a channel (108) defining a magnetic coupling between the resonators. The channel configuration and placement can vary depending on the desired frequency response.