Antenna arrangement and mobile terminal device
First Claim
1. An antenna arrangement which is operable in various mobile communication systems comprising a first, a second, a third, a fourth, and a fifth system which use different frequencies, the antenna arrangement, comprisingtransmitter/receivers of a multi-mode phone,at least two antennas,at least one filter placed between the first antenna and the transmitter/receivers by which signals to be transmitted are filtered before being taken to the first antenna and by which signals to be received through the first antenna are filtered,at least one controllable switch placed between the first antenna and the transmitter/receivers by which the signals to be transmitted are connected to the first antenna and by which the signals to be received through the first antenna are connected to one of the transmitter/receivers,wherein in an antenna arrangement consisting of two antennas the signals are transmitted so thatthe first antenna transmits signals of the second, third and fourth systems, andsignals are received so thatsignals of the third system are received through the first antenna,signals of the second and fourth systems are received through the second antenna andwherein in an antenna arrangement consisting of three antennas the signals are transmitted so thatthe first antenna transmits signals of the second system,the second antenna transmits signals of the fifth system, andsignals are received so thatsignals of the second system are received through the second antenna andsignals of the fifth system are received through the third antenna.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention is concerned with an antenna arrangement adapted to a mobile terminal and division of frequency bands between different antennas. The antenna arrangement enables the terminal to operate worldwide in networks applying different frequency bands and technologies, as a so-called multi-band terminal. In the antenna arrangement the frequency bands of the antennas are arranged for each antenna in a way that the bands fill an optimal frequency area, thus accomplishing smaller total volume for the antennas and a good performance.
14 Citations
19 Claims
-
1. An antenna arrangement which is operable in various mobile communication systems comprising a first, a second, a third, a fourth, and a fifth system which use different frequencies, the antenna arrangement, comprising
transmitter/receivers of a multi-mode phone, at least two antennas, at least one filter placed between the first antenna and the transmitter/receivers by which signals to be transmitted are filtered before being taken to the first antenna and by which signals to be received through the first antenna are filtered, at least one controllable switch placed between the first antenna and the transmitter/receivers by which the signals to be transmitted are connected to the first antenna and by which the signals to be received through the first antenna are connected to one of the transmitter/receivers, wherein in an antenna arrangement consisting of two antennas the signals are transmitted so that the first antenna transmits signals of the second, third and fourth systems, and signals are received so that signals of the third system are received through the first antenna, signals of the second and fourth systems are received through the second antenna and wherein in an antenna arrangement consisting of three antennas the signals are transmitted so that the first antenna transmits signals of the second system, the second antenna transmits signals of the fifth system, and signals are received so that signals of the second system are received through the second antenna and signals of the fifth system are received through the third antenna.
-
10. A terminal operable in various mobile communication systems comprising a first, a second, a third, a fourth, and a fifth system which use different frequencies, said terminal having an antenna arrangement comprising
transmitter/receivers of a multi-mode phone, at least two antennas, at least one filter placed between the first antenna and the transmitter/receivers by which signals to be transmitted are filtered before being taken to the first antenna and by which signals to be received through the first antenna are filtered, at least one controllable switch placed between the first antenna and the transmitter/receivers by which the signals to be transmitted are connected to the first antenna and by which the signals to be received through the first antenna are connected to one of the transmitter/receivers, wherein in an antenna arrangement consisting of two antennas the signals are transmitted so that the first antenna transmits signals of the second, third and fourth systems, and signals are received so that signals of the third system are received through the first antenna, signals of the second, third and fourth systems are received through the second antenna, and wherein in an antenna arrangement consisting of three antennas the signals are transmitted so that the first antenna transmits signals of the second system, the second antenna transmits signals of the fifth system, and the signals are received so that signals of the second system are received through the second antenna, and signals of the fifth system are received through the third antenna.
-
13. A method for transmission and reception of signals in a multi-mode phone operable in various mobile communication systems comprising a first, a second, a third, a fourth, and a fifth system which use different frequencies, the multi-mode phone comprising transmitter/receivers, controllable switches, filters, and at least two antennas,
wherein in an antenna arrangement consisting of two antennas the signals are transmitted so that signals of the second system, coming from the first transmitter are connected by the first controllable switch to the first antenna and filtered by the first filter before transmission through the first antenna, the signals of the third and fourth systems, coming from the second transmitter are connected by the second controllable switch to the first antenna and filtered by the second filter and the third filter before transmission through the first antenna, and signals are received so that signals of the third system are received through the first antenna and filtered by the second and the third filters and then connected by the second controllable, switch to the receiver, and signals of the second and fourth systems are received through the second antenna, and wherein in an antenna arrangement consisting of three antennas signals are transmitted so that signals of the second system are transmitted through the first antenna and signals of the fifth system through the second antenna, and signals are received so that signals of the second system are received through the second antenna and signals of the fifth system are received through the third antenna.
Specification