Method and arrangement for detecting load mismatch, and a radio device utilizing the same
First Claim
1. An arrangement for detecting impedance mismatch between an output of a radio frequency amplifier and an input of a load coupled to the output of the radio frequency amplifier, of which the radio frequency amplifier comprises an amplifying component, the arrangement comprising:
- first monitoring means adapted to monitor a measurable electric effect at other side of the amplifying component than the load and to produce a first measurement signal, second monitoring means adapted to monitor a measurable electric effect between the amplifying component and the load and to produce a second measurement signal, and decision-making means adapted to receive said first and second measurement signals and to decide, whether said first and second measurement signals together indicate impedance mismatch.
2 Assignments
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Accused Products
Abstract
A method and an arrangement are presented for detecting impedance mismatch between an output of a radio frequency amplifier (200, 901, 911, 921, 1101) and an input of a load (203, 302) coupled to the output of the radio frequency amplifier. The radio frequency amplifier comprises an amplifying component (201, 301, Q46, 701, 801). First monitoring means (401) monitor a measurable electric effect (311) at other side of the amplifying component (201, 301, Q46, 701, 801) than the load (203, 302) and produce a first measurement signal (411). Second monitoring means (402) monitor a measurable electric effect (312) between the amplifying component (201, 301, Q46, 701, 801) and the load (203, 302) and produce a second measurement signal (412). Decision-making means (204, 902, 912, 923, 1102) receive said first (411) and second (412) measurement signals and decide, whether said first and second measurement signals together indicate impedance mismatch.
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Citations
24 Claims
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1. An arrangement for detecting impedance mismatch between an output of a radio frequency amplifier and an input of a load coupled to the output of the radio frequency amplifier, of which the radio frequency amplifier comprises an amplifying component, the arrangement comprising:
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first monitoring means adapted to monitor a measurable electric effect at other side of the amplifying component than the load and to produce a first measurement signal, second monitoring means adapted to monitor a measurable electric effect between the amplifying component and the load and to produce a second measurement signal, and decision-making means adapted to receive said first and second measurement signals and to decide, whether said first and second measurement signals together indicate impedance mismatch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A mobile telecommunication device, comprising:
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a transmitter block, within the transmitter block a radio frequency amplifier having an amplifying component and an output port, and an antenna coupled to the output port of the radio frequency amplifier;
wherein for detecting impedance mismatch between the antenna and the output port of the radio frequency amplifier the mobile telecommunication device comprises;
first monitoring means adapted to monitor a measurable electric effect at other side of the amplifying component than the antenna and to produce a first measurement signal, second monitoring means adapted to monitor a measurable electric effect between the amplifying component and the antenna and to produce a second measurement signal, and decision-making means adapted to receive said first and second measurement signals and to decide, whether said first and second measurement signals together indicate impedance mismatch. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method for detecting impedance mismatch between an output of a radio frequency amplifier and an input of a load coupled to the output of the radio frequency amplifier, comprising the steps of:
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monitoring a measurable electric effect at other side of an amplifying component within the radio frequency amplifier than the load, and producing a first measurement signal, monitoring a measurable electric effect between said amplifying component within the radio frequency amplifier and the load, and producing a second measurement signal, and deciding, whether said first and second measurement signals together indicate impedance mismatch. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification