channel amplifier
RSS channel amplifierSort by: Relevance | Date
Bandwidth Mismatch and Its Correction in Time-Interleaved Analog-to-Digital Converters
White Paper The sample-and-hold amplifier in each channel of a time-interleaved analog-to-digital converter system has finite bandwidth, and these bandwidths may be mismatched. This paper analyzes the effect of such mismatches. [11 Jul 2008]
Advanced Design Methods of Doherty Amplifier for Wide Bandwidth, High Efficiency Base Station Power Amplifiers
White Paper This paper has proposed advanced design methods of Doherty amplifier for high efficiency base station power amplifiers with wide bandwidth. First, the paper develops Doherty amplifier with uneven power drive which is provided more input power to... [11 Jul 2008]
ACP Measurements on Amplifiers Designed for Digital Cellular and PCS Systems
White Paper Whereas in the past, two-tone third-order intermodulation testing may have been used to assess amplifier non-linear effects, there is an increasing case for using the genuine digitally modulated signal as a stimulus. [03 Jul 2008]
A Novel Receive Algorithm for Clipped OFDM Signals
White Paper The transmit Power Amplifier (PA) and other elements in the signal path have to be operated at high Input Power BackOff (IBO), which decreases the efficiency of the PA and leads to higher costs. Similar to existing estimators for clipped real... [18 Apr 2007]
The Performance of OFDM-SDMA Systems With Power Amplifier Non-Linearities
White Paper Amplifier nonlinearities affect drastically the performance of Orthogonal Frequency Domain Multiplexing OFDM systems. In this paper, the effects of amplifier nonlinearities is evaluated in OFDM with Space-Division-Multiple-Access (SDMA).This paper... [11 Apr 2007]
OFDM With Trailing Zeros Versus OFDM With Cyclic Prefix: Links, Comparisons and Application to the HiperLan/2 System
White Paper In the absence of high-power amplifier induced nonlinear effects, it is shown that the resulting scheme is simply the dual of the classical Cyclic Prefix OFDM transceiver. Both the classical pilot-based as well as novel (semi-) blind subspace... [11 Apr 2007]
TriQuint Designs Power Amplifier 2X Faster and More Accurately Using Visual System Simulator
White Paper It was essential to accurately characterize the power amplifier's circuit performance at the system level and to accurately predict Adjacent Channel Power Ratio (ACPR) measurements using modulated signals as opposed to traditional two-tone analysis. [10 May 2006]
WHT/OFDM - An Improved OFDM Transmission Method for Selective Fading Channels
White Paper However, the OFDM modulation also exhibits drawbacks such as: low immunity against frequency selective fading and a high peak-to average power ratio (PAPR), which necessitates the usage of a highly linear amplifier. [21 Oct 2004]
