Abstract: Microwave antennas with a dielectric substrate (1) and at least one resonant conductor track structure (31 to 39) are described, which are particularly suitable for mobile dual-band and multiband telecommunication devices such as mobile and cellular telephones, as well as for devices which communicate in accordance with the Bluetooth standard. In addition, attuning of the resonance frequencies of various operating modes to a concrete constructional situation is possible thanks to various line segments (34, 35) and tuning stub lines (41, 42) without the necessity of changing the fundamental antenna design. Finally, the antennas may be soldered together with other components onto a printed circuit board in a conventional surface mounting process.

Abstract: A GPS receiver module (1) for receiving GPS signals and for determining position data therefrom is described, which is characterized in particular by a communications sub-module (3), to which the position data determined can be fed and by means of which said data can be converted into a format suitable for transmission to an a external appliance. The communications sub-module (3) is preferably a Bluetooth (BT) sub-module, by means of which the position data can be converted according to the Bluetooth standard and transmitted by wireless means. A dual band antenna particularly suitable for use with the GPS receiver module is furthermore described, by means of which it is not only possible to receive GPS signals, but also to establish a communications link with external appliances.

Abstract: Microwave antennas with a dielectric substrate (1) and at least one resonant conductor track structure (31 to 39) are described, which are particularly suitable for mobile dual-band and multiband telecommunication devices such as mobile and cellular telephones, as well as for devices which communicate in accordance with the Bluetooth standard. In addition, attuning of the resonance frequencies of various operating modes to a concrete constructional situation is possible thanks to various line segments (34, 35) and tuning stub lines (41, 42) without the necessity of changing the fundamental antenna design. Finally, the antennas may be soldered together with other components onto a printed circuit board in a conventional surface mounting process.

Abstract: Microwave antennas with a dielectric substrate (1) and at least one resonant conductor track structure (31 to 39) are described, which are particularly suitable for mobile dual-band and multiband telecommunication devices such as mobile and cellular telephones, as well as for devices which communicate in accordance with the Bluetooth standard. In addition, attuning of the resonance frequencies of various operating modes to a concrete constructional situation is possible thanks to various line segments (34, 35) and tuning stub lines (41, 42) without the necessity of changing the fundamental antenna design. Finally, the antennas may be soldered together with other components onto a printed circuit board in a conventional surface mounting process.

Abstract: The invention concerns a tunable cavity resonator that comprises a resonator body (2, 3, 4) defining a cavity (5), a tuning plate (28) whose position with respect to the resonator body (2, 3, 4) is modifiable and which influences the resonance frequency (&ohgr;R) of the cavity resonator, and an adjustment device (22, 26) for mechanically changing the position of the tuning plate (28), which is characterized in that a conversion ratio mechanism (18, 20) couples the adjustment device (22, 26) to the tuning plate (28) in terms of movement and converts a linear excursion (&Dgr;x1) generated by the adjustment device (22, 26), at a predefined ratio (U), into a reduced linear excursion (&Dgr;x2) that acts on the tuning plate (28), the conversion ratio mechanism (18, 20) comprising a first spring element (20) whose end toward the adjustment device is deflectable with the linear excursion (&Dgr;x1) generated by the adjustment device (22, 26), and a second spring element (18) which impinges with an opposing force on th

Abstract: A patch antenna with at least one patch resonator (10, 20) for the microwave range is described, which antenna is in particular suitable for an embodiment as a multilayer antenna with short-circuit conductor (14, 24) and for SMD mounting on a printed circuit board. The antenna furthermore has a bandwidth sufficient for use in mobile telecommunication also when substrates (11, 21) having the same dielectric or permeability value are used. This is achieved essentially in that the feed terminal comprises at least a first metallization piece (17) which extends on a first side face (112) of the resonator between the ground metallization (12) and the pattern (13) of metal patches, while the input impedance of the antenna is adjustable through a change in the dimensions of this metallization piece.

Abstract: A GPS receiver module (1) for receiving GPS signals and for determining position data therefrom is described, which is characterized in particular by a communications sub-module (3), to which the position data determined can be fed and by means of which said data can be converted into a format suitable for transmission to an a external appliance. The communications sub-module (3) is preferably a Bluetooth (BT) sub-module, by means of which the position data can be converted according to the Bluetooth standard and transmitted by wireless means. A dual band antenna particularly suitable for use with the GPS receiver module is furthermore described, by means of which it is not only possible to receive GPS signals, but also to establish a communications link with external appliances.

Abstract: Microwave antennas with a dielectric substrate (1) and at least one resonant conductor track structure (31 to 39) are described, which are particularly suitable for mobile dual-band and multiband telecommunication devices such as mobile and cellular telephones, as well as for devices which communicate in accordance with the Bluetooth standard. In addition, attuning of the resonance frequencies of various operating modes to a concrete constructional situation is possible thanks to various line segments (34, 35) and tuning stub lines (41, 42) without the necessity of changing the fundamental antenna design. Finally, the antennas may be soldered together with other components onto a printed circuit board in a conventional surface mounting process.

Abstract: A patch antenna with at least one patch resonator (10, 20) for the microwave range is described, which antenna is in particular suitable for an embodiment as a multilayer antenna with short-circuit conductor (14, 24) and for SMD mounting on a printed circuit board. The antenna furthermore has a bandwidth sufficient for use in mobile telecommunication also when substrates (11, 21) having the same dielectric or permeability value are used. This is achieved essentially in that the feed terminal comprises at least a first metallization piece (17) which extends on a first side face (112) of the resonator between the ground metallization (12) and the pattern (13) of metal patches, while the input impedance of the antenna is adjustable through a change in the dimensions of this metallization piece.