Patents for H01P 7 - Resonators of the waveguide type (6,314)
01/1989
01/03/1989US4795992 Mount for dielectric coaxial resonators
12/1988
12/28/1988EP0296838A2 Monolithic microwave transmitter/receiver
12/27/1988US4794355 Heat sink for magnetically tuned filter
12/27/1988US4794354 Apparatus and method for modifying microwave
12/21/1988EP0296009A1 Trinable microwave filtering device with a dielectric resonator and applications thereof
12/21/1988EP0296007A1 Whispering-gallery mode microwave resonator
12/20/1988US4792772 Microwave apparatus
12/20/1988US4792537 Dielectric ceramic composition for high frequencies
12/15/1988WO1988010013A2 Microwave multiplexer with multimode filter
12/14/1988EP0295133A1 Temperature stable dielectric composition at high low frequencies
11/1988
11/30/1988EP0292571A1 Apparatus for measuring physical quantities and a method therefor
11/17/1988EP0291487A2 Wide-band extended interaction device
11/17/1988EP0290794A1 Microwave oscillator with a dielectric resonator, especially for the 22 GHz range
11/15/1988US4785375 Temperature stable dielectric composition at high and low frequencies
11/09/1988EP0290187A2 Cavity resonator
11/08/1988US4783641 NMR radio frequecny field coil with distributed current
11/01/1988US4782312 Mode selective magnetostatic wave resonators
10/1988
10/11/1988US4777462 Edge coupler magnetostatic wave structures
10/11/1988US4777459 For electromagnetic signals
10/05/1988EP0285503A1 Filter with distributed constant elements associating two kinds of coupling arrangements
10/05/1988EP0285326A2 Low noise magnetically tuned resonant circuit
10/04/1988US4775847 Tunable resonant cavity filter structure with enhanced ground return
10/04/1988US4775649 Dielectric porcelain composition
09/1988
09/27/1988US4774483 Diagonally coupled magnetostatic wave resonators
09/06/1988US4769620 Microwave oscillator with dielectric resonator
08/1988
08/23/1988US4765055 Method of fabricating a superconducting cavity
08/02/1988US4761624 Microwave band-pass filter
08/02/1988CA1240009A1 Dielectric resonator frequency selective network
07/1988
07/26/1988US4760361 Double-mode filter
07/19/1988US4758922 High frequency circuit having a microstrip resonance element
07/19/1988US4758800 Low noise magnetically tuned resonant circuit
07/12/1988US4757289 Filter with dielectric resonators
07/12/1988US4757285 Filter for short electromagnetic waves formed as a comb line or interdigital line filters
07/12/1988US4757284 Dielectric filter of interdigital line type
07/06/1988EP0273305A2 Dielectric ceramic composition
07/05/1988US4755780 Ferromagnetic resonator having temperature compensation means using pre-coded compensation data
06/1988
06/28/1988US4753906 Communications
06/22/1988CN87104705A Cavity
06/21/1988US4752594 Dielectric ceramic
06/16/1988WO1988004423A1 Apparatus for measuring physical quantities and a method therefor
06/14/1988US4751481 Molded resonator
06/14/1988US4751480 One port magnetostatic wave resonator
06/14/1988US4751464 Cavity resonator with improved magnetic field uniformity for high frequency operation and reduced dielectric heating in NMR imaging devices
06/07/1988US4749669 Dielectric ceramic composition
05/1988
05/31/1988US4748427 Microwave resonating cavity with metallized dielectric
05/19/1988WO1988003652A1 Linear position sensor
05/17/1988US4745379 Launcher-less and lumped capacitor-less ceramic comb-line filters
05/17/1988US4745093 Dielectric ceramic composition
05/10/1988US4743874 Thin film of yttrium-iron-garnet on gadolinium-gallium-garnet substrate; fine stripe electrodes
05/03/1988US4742320 Resonator structure comprising metal coated tubular carrier and having slits in the metal coating
05/03/1988CA1236181A1 Bandpass filter with dielectric resonators
04/1988
04/27/1988CN87105317A Multiple resonator component-mountable filter
04/12/1988US4737738 Extended interaction device tuned by movable delay line structure
04/12/1988US4737705 Linear position sensor using a coaxial resonant cavity
04/05/1988US4736173 Thermally-compensated microwave resonator utilizing current-null segmentation
04/05/1988US4735926 Alumina ceramic body
04/05/1988CA1234882A1 Radio frequency filter having a temperature compensated ceramic resonator
03/1988
03/22/1988US4733209 Ceramic Scrambler module
03/22/1988US4733208 Dielectric filter having impedance changing means coupling adjacent resonators
03/15/1988US4731207 Oxides of barium, magnesium and tantalum
03/08/1988US4730174 Dielectric material coaxial resonator with improved resonance frequency adjusting mechanism
03/01/1988US4728913 Dielectric resonator
03/01/1988US4728910 Folded waveguide coupler
02/1988
02/23/1988US4727343 Precision tuning
02/23/1988US4727342 Dielectric resonator
02/16/1988US4726071 Microprocessor controlled self-tuning resonant cavity and method
02/11/1988WO1988001104A1 Multiple resonator component-mountable filter
02/09/1988US4724403 Microwave oscillator
02/03/1988EP0255068A1 Filter for short electromagnetic waves having the shape of comb filters or interdigital filters
01/1988
01/26/1988US4721932 Ceramic TEM resonator bandpass filters with varactor tuning
01/12/1988US4719435 Adjustable-frequency resonant device
01/07/1988EP0251914A2 Ceramic scrambler module
01/05/1988US4717694 Dielectric ceramic composition for high frequencies
12/1987
12/22/1987US4714906 Dielectric filter with variable central frequency
12/02/1987EP0247749A2 Push-push dielectric resonator oscillator
12/02/1987EP0247440A2 Microwave oscillator with dielectric resonator
12/01/1987US4710729 Microwave oscillator comprising a dielectric resonator insensitive to mechanical vibrations
11/1987
11/25/1987EP0246639A2 Atomic or molecular maser cavity resonator
11/25/1987CN87103472A Microstrip transmission line for coupling to a dielectric resonator
11/19/1987EP0246042A2 Dielectric filter
11/19/1987EP0245890A2 Microstrip transmission line for coupling to a dielectric resonator
11/17/1987US4707668 Method and apparatus for transferring and injecting rf energy from a generator to a resonant load
11/17/1987CA1229389A1 Microwave bandpass filters including dielectric resonators
11/10/1987US4706053 Microwave metallic cavity
11/10/1987US4706052 Dielectric resonator
11/10/1987US4706042 Atomic or molecular maser cavity resonator
11/03/1987US4704739 Receiving circuit for converting signals comprising at least two ferromagnetic resonators
10/1987
10/27/1987US4703291 Dielectric filter for use in a microwave integrated circuit
10/27/1987EP0235123A4 Narrow bandpass dielectric resonator filter.
10/13/1987US4700158 Helical resonator
10/13/1987US4700127 Microwave probe and rotary body detecting apparatus using the same
10/13/1987US4699891 Dielectric ceramic composition
10/13/1987CA1228135A1 Resonant tag circuits useful in electronic security systems
10/06/1987US4698822 Apparatus for exciting a plasma in a column of gas by means of microwaves, in particular for providing an ion laser
09/1987
09/22/1987CA1227028A1 Dielectric ceramic composition
09/16/1987EP0236887A2 Microwave oscillator stabilized by a dielectric resonator
09/15/1987US4694262 Oscillator with resonator having a switched capacitor for frequency changing
09/15/1987US4694260 Microwave discriminator and devices using said discriminator
09/09/1987EP0235123A1 Narrow bandpass dielectric resonator filter.
09/08/1987US4692727 Dielectric resonator device
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