| Patent application number | Description | Published |
|---|
| 20080218422 | ANTENNA FOR RADIO RECEPTION WITH DIVERSITY FUNCTION IN A VEHICLE - Antenna for radio reception, which is disposed, for reception of frequencies above the high-frequency range, in a motor vehicle window, in an electrically conductive vehicle body, together with an imprinted heating field, which field extends into the vicinity of the upper window edge, and comprises horizontally disposed heating conductors and bus bars situated at the side edges of the heating field, for supplying the direct current for heating by way of high-frequency-insulating uncoupling networks, whereby at least one antenna is formed by means of connecting this heating field to an antenna connection contact, by way of a conductor. A rod antenna with an antenna connection contact in the antenna foot point, with electrical through-coupling of the reception signals into the vehicle interior, is present on the outer skin of the vehicle and affixed in the vicinity of the upper window edge, for the reception of signals both for low frequencies and above the high-frequency range. The antenna connection contact of the rod antenna and the at least one antenna connection contact on the motor vehicle window pane, as well as the ground connection to the metallic vehicle body, are combined in the spatial region of an antenna connection point of at least two diversity antennas, for frequencies above the high-frequency range, and the geometrical expanse of this antenna connection point is smaller than 1/15 of the wavelength in this frequency range. An antenna module is present within the region of the antenna connection point, in which all the electronic components required for signal amplification in both frequency ranges are contained, and to which module the reception signals of the antenna connection contacts are passed by way of connection lines, and to the ground connection, and whose output signals in both frequency ranges are passed to a receiver, by way of a shielded HF line. | 09-11-2008 |
| 20080260079 | RECEPTION SYSTEM HAVING A SWITCHING ARRANGEMENT FOR SUPPRESSING CHANGE-OVER INTERFERENCE IN THE CASE OF ANTENNA DIVERSITY - A diversity processing system for providing interference masking signals in an interference suppression circuit. These interference masking signals are generated by an interference detector which through a coupling element couples in a signature signal into a reception signal. This reception signal is then passed to an amplifier, an optional frequency converter, an IF filter, a frequency demodulator and then on to an interference suppression circuit which provides a masking pulse to mask any distortion or interference associated with the diversity switching of antennas during operation. | 10-23-2008 |
| 20090036074 | ANTENNA DIVERSITY SYSTEM HAVING TWO ANTENNAS FOR RADIO RECEPTION IN VEHICLES - There is an antenna diversity system for radio reception in moving vehicles which includes a receiver, and at least two antennas coupled to the receiver. These antennas transmit antenna feed signals to an antenna diversity module coupled between the receiver and the antennas. In at least one embodiment, the antenna diversity module comprises at least one evaluation circuit for evaluating an interference in a reception signal, and at least one processor for adjusting a magnitude em and a phase angle of a linear combination of the antenna feed signals. The evaluation circuit reads and sends an interference indication signal to the processor to create a relatively low interference signal. Thus, the diversity module combines the antenna feed signals in an adjustable manner based on an magnitude of phase angle, to form a linear combined signal that is present at the output of the antenna diversity module as a reception signal. | 02-05-2009 |
| 20090042529 | ANTENNA DIVERSITY SYSTEM FOR RELATIVELY BROADBAND BROADCAST RECEPTION IN VEHICLES - There is disclosed an antenna diversity system for relatively broadband broadcast reception in vehicles such as motor vehicles. The device can include a diversity processor having numerous components including a microprocessor for controlling a signal selection switch. In alternative embodiments the processor can be incorporated into a receiver or into a multi-antenna system. One advantage of these designs is that it is able to exist with one reception tuner and being able to select one signal from a plurality of antenna signals A | 02-12-2009 |
| 20090073072 | ANTENNA FOR SATELLITE RECEPTION - There is disclosed an antenna for reception of circularly polarized satellite radio signals. The antenna comprises at least one two-dimensional or three-dimensional antenna conductor structure connected with an antenna output connector. The multi-dimensional antenna conductor structure is configured so that it comprises a plurality of antenna conductor sections, which, with reference to a spatial reference point (z) common to the antenna conductor sections, are disposed in pairs, symmetrically and extending in the same direction. The multi-dimensional antenna conductor structure is furthermore configured so that during reciprocal operation of the antenna as a transmission antenna, antenna currents having at least approximately the same size flow in the individual pairs of antenna conductor sections, and the arithmetical average of the current phases of these antenna currents, counted in the same direction, in each instance, in the antenna conductor sections of each pair, has at least approximately the same value in the case of essentially all the pairs of antenna conductor sections, with reference to a common phase reference point (B), during reciprocal operation of the antenna as a transmission antenna. Such an antenna receives left-rotating circularly polarized waves and right-rotating circularly polarized waves equally. The vertical radiation diagram can be filled up towards low elevation angles by means of a vertical, electrically short monopole disposed at the phase reference point (B), whose reception signal is superimposed on that of the antenna conductor structure. | 03-19-2009 |
| 20100183095 | RECEPTION SYSTEM FOR SUMMATION OF PHASED ANTENNA SIGNALS - A diversity antenna system and method comprising a plurality of antennas, a plurality of switches and a plurality of phase shifters, wherein the switches and the antennas are selectively opened and closed or switched on an off to achieve equiphasing. This system separates the noise signal from the useful signal in order to achieve a proper determination of the different phases. In addition there is a receiver which is configured to receive the output of the diversity system. The logic control unit is configured to perform particular steps or algorithms in order to achieve equiphasing of the received signals. | 07-22-2010 |
| 20100253587 | ANTENNA FOR RECEPTION OF SATELLITE RADIO SIGNALS EMITTED CIRCULARLY, IN A DIRECTION OF ROTATION OF THE POLARIZATION - An antenna for reception of satellite radio signals emitted circularly in the direction of rotation of polarization has a conductive base surface, an antenna connection point, an antenna element connection point and at least two antenna elements. The first antenna element is a loop antenna formed as a conductor loop disposed substantially parallel but spaced apart from the base surface. The loop antenna has a plurality of capacitors disposed along the conductor loop. The antenna connection point is coupled to at least one interruption of the loop antenna. This connection point is configured to feed a ring current into the loop antenna. There is also at least one additional antenna element extending between the antenna element connection point and the loop antenna. There is at least one antenna output connector linearly polarized in a spatial direction and a plurality of networks forming a matching network and a phase shifter network configured to connect the antenna elements to at least one antenna output connector. The antenna element connection point and the loop antenna are coupled to each other by the two networks. In reciprocal operation of the antenna, the radiation fields of the loop antenna and of the additional antenna element are superimposed with different phases in a far field of the antenna. The additional antenna element has a polarization orientated substantially perpendicular to the polarization of the loop antenna and an essentially orthogonal phase in the far field. | 10-07-2010 |
| 20100302112 | ANTENNA FOR CIRCULAR POLARIZATION, HAVING A CONDUCTIVE BASE SURFACE - An antenna for circular polarization having an electrical dipole radiator which is oriented essentially parallel to an electrically conductive base surface in a plane of symmetry SE oriented perpendicular to the electrically conductive base surface. The dipole is in connection with a slot radiator which is configured in an electrically conductive base surface, with its longitudinal expanse along the intersection line between the plane of symmetry SE and the electrically conductive base surface. The slot radiator connection location is formed by means of connection points situated at the longitudinal edges and lying opposite one another. The electrical dipole radiator and the slot radiator are tuned to one another in their resonance frequencies. The slot radiator and the electrical dipole radiator with dipole feed line are connected with the antenna connection location by way of a combining network, in terms of magnitude and phase, in such a manner that circular polarization exists in the remote field at the frequency at which the radiators are tuned to one another. | 12-02-2010 |
