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Amplifier arrangement for ultra-wideband applications and method

An amplifier and ultra-broadband technology, applied in the parts of amplifying devices, amplifiers with semiconductor devices/discharge tubes, amplifiers, etc., to achieve the effect of reducing the number of

Active Publication Date: 2007-04-18
INFINEON TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this contradicts the desired gain flatness for UWB applications

Method used

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  • Amplifier arrangement for ultra-wideband applications and method
  • Amplifier arrangement for ultra-wideband applications and method
  • Amplifier arrangement for ultra-wideband applications and method

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Embodiment Construction

[0049] Figure 1 shows an amplifier arrangement for ultra-wideband applications UWB. The signal input terminal 1 includes for receiving the input signal V in a pair of terminals and are designed for differential signal processing. An output signal is available at output 2, which is referred to as V out and represents the amplified input signal. The input terminal 1 is connected to the control terminals of two transistors 3, 4 forming a differential amplifier. For this purpose, the source terminals of the transistors 3 , 4 are connected to each other and via a current source 50 to the ground potential terminal Vss. On the drain side, each of the transistors 3, 4 is connected to a cascode transistor 5, 6 at its source terminal. The drain terminals of the cascode transistors 5 , 6 are connected to the output 2 in a symmetrical circuit design. The gate terminals of the cascode transistors 5, 6 are designed to receive a constant bias potential V bias . The transistors 3 , 4 o...

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Abstract

An amplifier arrangement for ultra-wideband, UWB, applications and. a method to amplify a UWB signal are presented. A transistor, whose control input forms an input of the arrangement, is connected to a resonant circuit having a controllable resonator frequency. At the resonator circuit, an output of the arrangement is formed. The resonant circuit includes a frequency determining inductance whose value is controllable. By doing this, it is possible to preselect different frequency bands, while achieving the same gain characteristics in each band.

Description

technical field [0001] The present invention relates to amplifier arrangements for ultra-wideband applications, receivers containing such amplifier arrangements, radio frequency mixers, frequency dividers and clock generators, and methods of amplifying ultra-wideband signals. [0002] The ultra-wideband (UWB) standard refers to systems capable of transmitting signals over a wider frequency range than conventional systems. The frequency spectrum occupied by the UWB signal, that is, the bandwidth of the UWB signal is at least 25% of the central frequency. Thus, for example a UWB signal with a center frequency of 2 GHz covers a minimum bandwidth of 500 MHz. The most common technique used to generate UWB signals is to transmit pulses with a pulse duration of less than 1 ns. UWB is also known as non-sinusoidal communication technology. [0003] The first-generation ultra-wideband system allows a frequency bandwidth of 3.1 to 5 GHz, and subsequent generations expand the frequency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/42H03F3/60H03F3/45H03D7/14H04B1/16
CPCH03B5/1212H03B2200/0078H03J2200/10H03F2200/372H03F2200/294H03F2203/45704H03F3/45188H03J2200/15H03J3/22H03F2203/45638H03B5/1228H03F3/191H03F2200/36H03F2203/45641H03B5/1256H03B2200/0074H03F1/42H03F1/565H03F2203/45726
Inventor R·萨勒诺
Owner INFINEON TECH AG
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