Microwave Transmitter and Receiver

  • Jensen R.
  • Rowe R.
  • Sherman R.

T h e microwave t r a n s m i t t e r and receiver units constitute t h e basic building blocks for the T D - 3 radio system. T h e y provide the gain necessary to compensate for the transmission loss of the station-tostation air path, and means for changing t h a t gain during periods of radio signal fading. These units also include the selectivity required to keep the radio channels of a route properly separated. As previously pointed out, 1 the Schottky barrier diode modulator is used in microwave receivers now being m a n u f a c t u r e d ; therefore, most of our derivations pertain to this t y p e of receiver. However, our analysis of receiver selectivity requirements pertains to a receiver equipped with a parametric amplifier, whose use was expected when the selectivity requirements were originally established. N. DESIGN FEATURES AND PERFORMANCE OBJECTIVES T h e distinction between a design feature and a performance objective is not always clear because they m a y be related; therefore, somewhat a r b i t r a r y distinctions are made.

Recent Publications

August 09, 2017

A Cloud Native Approach to 5G Network Slicing

  • Francini A.
  • Miller R.
  • Sharma S.

5G networks will have to support a set of very diverse and often extreme requirements. Network slicing offers an effective way to unlock the full potential of 5G networks and meet those requirements on a shared network infrastructure. This paper presents a cloud native approach to network slicing. The cloud ...

August 01, 2017

Modeling and simulation of RSOA with a dual-electrode configuration

  • De Valicourt G.
  • Liu Z.
  • Violas M.
  • Wang H.
  • Wu Q.

Based on the physical model of a bulk reflective semiconductor optical amplifier (RSOA) used as a modulator in radio over fiber (RoF) links, the distributions of carrier density, signal photon density, and amplified spontaneous emission photon density are demonstrated. One of limits in the use of RSOA is the lower ...

July 12, 2017

PrivApprox: Privacy-Preserving Stream Analytics

  • Chen R.
  • Christof Fetzer
  • Le D.
  • Martin Beck
  • Pramod Bhatotia
  • Thorsten Strufe

How to preserve users' privacy while supporting high-utility analytics for low-latency stream processing? To answer this question: we describe the design, implementation and evaluation of PRIVAPPROX, a data analytics system for privacy-preserving stream processing. PRIVAPPROX provides three properties: (i) Privacy: zero-knowledge privacy (ezk) guarantees for users, a privacy bound tighter ...