U.S. Philips Corporation

Jurgen Kohler

Burkhard Schiek

Olaf H Dossel

Kai-Michael Ludeke

Reinhard Knochel

Kai M Ludeke

A shielding sleeve (19) for SQUID-magnetometers which serves to shield from electromagnetic interference fields, consists of an electrically conductive shielding material so as to obtain adequate RF shielding in conjunction with a low noise contribution, completely envelops a non-shielding cryostat (10), has a predetermined sheet resistance and consists of at least one layer of the shielding material in order to avoid an increase of the magnetometer overall noise.

Squid magnetivity having a totally enclosing electromagnetic shield with

A microwave component including an aerial comprised of at least a planar electrically conducting radiating element (3), arranged on a surface of a dielectric substrate (1). The surface is opposite a bearing surface which is at least partially covered with an electrically conducting layer serving as a ground plane (5). The microwave component further contains a microwave circuit used for processing and/or producing aerial signals. A dielectric film (2) is laid around the substrate (1). One side of this film (2) contains the radiating element (3), the ground plane (5) being arranged on the inside surface and the microwave circuit being arranged opposite the ground plane (5) on the outside surface. The aerial is further connected to the microwave circuit via a feeder line (4).

Microwave component

A method for measuring the physical temperature of objects by means of microwaves using a Dicke radiometer. A noise signal is continuously applied to an antenna which is directed towards the object and is periodically and alternately applied, together with the antenna signal, which includes reflected noise and object emission to the radiometer. The integrated output signal of the radiometer controls the noise power and is proportional to the object temperature.

Method and arrangement for measuring the physical temperature of an

Disclosed is a 180.degree. phase shifter having meander-shaped coupled lines in a predominantly planar form, such as, for example, microstrip, microslot or stripline, formed by a .lambda./2 long meander disposed opposite to a .lambda./4 long meander.

Broad-band 180.degree. phase shifter

A phase shifter having, on one surface of a substrate, a microstrip stub which is connected in parallel to a microstrip line and which is open at one end. Disposed below the stub is a slot which is short-circuited at a point below the open end of the stub, and which ends in an open circuit at the opposite end.

Growing community of inventors

Halstenbek, Germany

Jurgen Kohler