By Topic

# Electronics Letters

## Filter Results

Displaying Results 1 - 18 of 18
• ### Summed-sensitivity invariants and their generation

Publication Year: 1968, Page(s):281 - 282
Cited by:  Papers (7)
| | PDF (267 KB)

The generation of the summed-sensitivity invariants for the case of active networks is presented. On using the new method of proof, the summed-sensitivity invariants can be generated also for general physical systems. View full abstract»

• ### Transformation of time series of events by random delays

Publication Year: 1968, Page(s):282 - 283
Cited by:  Papers (1)
| | PDF (287 KB)

A series of events, interspaced by Gaussian distributed intervals and subjected to Gaussian distributed displacements, may yield a series with nonGaussian distributed intervals, and vice versa. View full abstract»

• ### Response of logarithmic amplifiers to noise signals

Publication Year: 1968
| | PDF (137 KB)

Tuned logarithmic amplifiers have shown a response to noise and radar clutter contrary to accepted theory in that the spread of the output probability-density function increases with increasing inputs. This effect is due to conversion of phase to amplitude modulation in the filters, and a remedy is described. View full abstract»

• ### Binary division using a data-dependent iterative array

Publication Year: 1968, Page(s):283 - 284
Cited by:  Papers (3)
| | PDF (268 KB)

An iterative array is proposed which can be used to carry out binary division based on the principle of successive subtraction. The function of each cell of the array is dependent on the result of subtraction in the array. View full abstract»

• ### Techniques for determining the characteristics of corona pulses

Publication Year: 1968, Page(s):284 - 286
| | PDF (369 KB)

An investigation of the way in which corona on overhead lines causes radio interference has led to a study of the current pulses in a very nonuniform field gap. These pulses have been examined by modern instrumentation techniques, and some properties of negative-point corona are reported. View full abstract»

• ### Surface-wave propagation-constant measurements

Publication Year: 1968, Page(s):286 - 287
Cited by:  Papers (4)
| | PDF (312 KB)

A surface-wave resonator is used to measure the propagation constant of energy in the TM01 mode on a G line over a wide frequency range when the line is dry, wet and enclosed in a dielectric shield. Measured data indicate low loss and relative immunity to moisture in the 0Â·5Â¿0Â·8GHz frequency range. View full abstract»

• ### Generalised patterns of nonuniformity for solvable algebraic and transcendental transmission lines

Publication Year: 1968, Page(s):287 - 289
Cited by:  Papers (4)
| | PDF (420 KB)

The aim of this letter is to show that, on transforming the independent variable x of the telegrapher's equation for nonuniform lines to another independent variable w=F(x) which is some function of the distance variable x, and then constraining the transformed equation, so obtained, to represent either Su's trigonometric or his hyperbolic line, a generalised pattern of nonuniformity, expressible ... View full abstract»

• ### Measurement of the current distribution on monopoles in a large volume of hot plasma

Publication Year: 1968, Page(s):289 - 291
Cited by:  Papers (1)
| | PDF (434 KB)

Measurements have been made of the amplitude and phase distributions of the current on monopoles of various lengths (Â¿0/4 < h < 11/2Â¿0) embedded in a large volume of hot plasma. The change in the current distributions was observed as the ratio of the plasma frequency (Â¿p) to the antenna frequency (Â¿) was varied. When Â¿p < Â¿, the plasma behaves like a dielectric with a relative permi... View full abstract»

• ### Calculations relating to delayed m sequences

Publication Year: 1968, Page(s):291 - 292
| | PDF (243 KB)

An alternative solution is given to a problem relating to the generation of delayed versions of maximal-length linear sequences. View full abstract»

• ### Photoelectric restoring system for images degraded by atmospheric turbulence

Publication Year: 1968, Page(s):292 - 294
| | PDF (610 KB)

The information content of any picture is limited by the resolution of the system which is involved in the image processing. For astronomic observation, the actual resolution is not usually limited by the diffraction limit of the telescope, but rather by viewing effects through the turbulent atmosphere. The interaction of turbulent air with the image-transmission and -detection system results in a... View full abstract»

• ### Rational design of Gunn- and l.s.a.-diode electrodes

Publication Year: 1968, Page(s):294 - 295
Cited by:  Papers (2)
| | PDF (315 KB)

Electrode design for GaAs bulk-effect oscillator diodes has been largely empirical. A goodÂ¿ contact is not merely ohmicÂ¿. It is important to use more precise criteria. In fact, contacts suitable for Gunn diodes may be quite unsatisfactory for l.s.a. diodes. View full abstract»

• ### Portrayal of the field at the junction between a Yagi structure and a dielectric-rod transmission line

Publication Year: 1968, Page(s):295 - 296
| | PDF (272 KB)

The electromagnetic field of a surface wave crossing the junction between a Yagi structure and a dielectric-rod transmission line is portrayed by the lines of constant field strength and the wavefronts. For matched-field extent, there is negligible reflection and radiation from the junction. View full abstract»

• ### Measurement of surface impedance at microwave frequencies

Publication Year: 1968, Page(s):296 - 298
Cited by:  Papers (4)
| | PDF (410 KB)

A technique for measuring the surface impedance of a plane stratified media at microwave frequencies is given, and preliminary tests are made for a variety of situations ranging from capacitive impedances to surfaces, which display a purely inductive reactance. The technique utilises a modulated scatterer to measure the elliptically polarised electric field of a TM wave propagation over the surfac... View full abstract»

• ### Summed sensitivity of active RC networks

Publication Year: 1968, Page(s):298 - 299
Cited by:  Papers (4)
| | PDF (306 KB)

The results of Holt and Fidler for the summed sensitivity of RC passive networks are obtained by an alternative method which allows the results to be conveniently extended to active RC networks and gyrator-RC networks. The effect of these results on the minimum value of Schoefler's sensitivity criterion is discussed. View full abstract»

• ### General form of the reciprocity relationship for bianisotropic media

Publication Year: 1968, Page(s):299 - 300
Cited by:  Papers (1)
| | PDF (254 KB)

In this letter, the reciprocity relationship of electromagnetic theory is established for the bianisotropic media. The result is applied to the particular case of a uniformly moving medium, even when it has anisotropic properties in its rest frame. View full abstract»

• ### Erratum: Phase-plane trajectories for linear-p.c.m.-oscillator control systems

Publication Year: 1968
| | PDF (119 KB)

First Page of the Article
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• ### Erratum: Error-correcting algorithm for adapting a hyperelliptical decision surface for pattern recognition

Publication Year: 1968
| | PDF (119 KB)

First Page of the Article
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• ### Erratum: Improving the transient-response characteristics of pulse filters with parabolic distribution of poles

Publication Year: 1968
| | PDF (119 KB)

First Page of the Article
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## Aims & Scope

Electronics Letters is internationally renowned for its rapid communication of new developments and emerging topics across the broad and interdisciplinary field of modern electronics and electrical engineering.

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## Meet Our Editors

Editors-in-Chief

Professor Chris Toumazou
Director of the Biomedical Institute
Imperial College, London, UK

Professor Ian White