Circuit arrangement for obtaining a constant field strength of an HF signal radiated by a transmitting device with exchangeable antenna
First Claim
Patent Images
1. A circuit arrangement for obtaining constant field strength of an HF signal radiated by an antenna of a transmitting device which has exchangeable antennas and an assembly within comprising:
- a transmitting device for generating and transmitting a constant field strength HF signal;
at least one exchangeable, disconnectable antenna, capable of being connected to and disconnected from said transmitting device for transmitting said constant field strength signal, comprising,an antenna-specific component, distinct for each exchangeable antenna, for increasing, decreasing or maintaining the transmitting power of said transmitting device via transmission of a control signal from said antenna-specific component to an assembly disposed within said transmitting device.
2 Assignments
0 Petitions
Accused Products
Abstract
A circuit arrangement is described with the aid of which a constant field strength of an HF signal radiated by a transmitting device (10) having an exchangeable antenna (12) can be achieved. Associated with the exchangeable antenna (12) is an antenna-specific component R1 from which in the operating state a control signal can be tapped after connection of the antenna (12) to the transmitting device (10). Said control signal is applied in the transmitting device (10) to an assembly (28) for influencing the transmitting power.
127 Citations
10 Claims
-
1. A circuit arrangement for obtaining constant field strength of an HF signal radiated by an antenna of a transmitting device which has exchangeable antennas and an assembly within comprising:
-
a transmitting device for generating and transmitting a constant field strength HF signal; at least one exchangeable, disconnectable antenna, capable of being connected to and disconnected from said transmitting device for transmitting said constant field strength signal, comprising, an antenna-specific component, distinct for each exchangeable antenna, for increasing, decreasing or maintaining the transmitting power of said transmitting device via transmission of a control signal from said antenna-specific component to an assembly disposed within said transmitting device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for obtaining a constant field strength of an HF signal radiated by an antenna of a transmitting device which has exchangeable antennas comprising the steps of:
-
generating HF signals to be transmitted; amplifying said HF signals; supplying said amplified HF signals to an exchangeable antenna, which has an antenna-specific component, in the form of a voltage; detecting said supplied voltage and transmitting a control signal to said transmitting device in response to said supplied voltage; modifying said supplied voltage in response to said control signal transmitted from said antenna-specific component; transmitting said constant field strength signal.
-
Specification