• Publications
  • Influence
Principles and Limitations of Ultra-Wideband FM Communications Systems
This paper presents a novel UWB communications system using double FM: a low-modulation index digital FSK followed by a high-modulation index analog FM to create a constant-envelope UWB signal. FDMAExpand
  • 127
  • 13
Effect of smooth nonlinear distortion on OFDM symbol error rate
Nonlinear distortion of OFDM signals can significantly increase the receiver symbol error rate (SER). Currently, distortion analyses rely on simulation, not yielding insight into the problem, orExpand
  • 58
  • 2
The Effect of Mismatches and Delay on the Quadrature Error of a Cross-Coupled Relaxation Oscillator
Cross-coupled relaxation oscillators can produce two highly accurate quadrature output signals (Verhoeven, 1992). We present a high-level model of these oscillators in terms of circuit parameters,Expand
  • 17
  • 1
Effect of smooth non-linear distortion on OFDM BER
Non-linear distortion of OFDM signals can significantly increase the receiver BER. Currently, distortion analyses rely on simulation, not yielding insight into the problem, or apply to specificExpand
  • 4
  • 1
Design of High Dynamic Range Fully Integratable Translinear Filters
This paper addresses the non-linear noise and dynamic-range properties of bipolar and MOS (both in weak and in strong inversion) translinear integrators, following a systematic top-down approach.Expand
  • 24
The effect of mismatch and disturbances on the quadrature relation of a cross-coupled relaxation oscillator
Cross-coupled relaxation oscillators are capable of producing two stable and highly accurate, quadrature output signals. We present a complete high-level model of the cross-coupled relaxationExpand
  • 15
The influence of non-linear distortion on OFDM bit error rate
The influence of bandpass non-linear distortion on an OFDM signal is investigated. The spectrum of the distorted signal and the resulting detection errors are determined. Non-linear distortion ofExpand
  • 13
A quadrature relaxation oscillator-mixer in CMOS
This paper describes the design of a quadrature cross-coupled oscillator circuit integrated which also realizes the mixer function in a phase lock loop (PLL). This should be able to provide a veryExpand
  • 5
A 5.8-GHz Quadrature Cross-Coupled Oscillator
This paper describes the implementation of a quadrature cross-coupled relaxation oscillator to be used in an OFDM RF front-end transceiver. A prototype of the oscillator was realized in a SiGe BiCMOSExpand
  • 3
A low-voltage translinear second-order quadrature oscillator
This paper describes the design of a low-voltage translinear second-order quadrature oscillator. The circuit is a direct implementation of a nonlinear second-order state-space description and followsExpand
  • 3