Word Finder - antenna

definition

A feeler organ on the head of an insect, crab, or other animal.

definition

An apparatus to receive or transmit electromagnetic waves and convert respectively to or from an electrical signal.

definition

The faculty of intuitive astuteness.

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A fragment of an oligosaccharide

definition

The spar to which a lateen sail is attached, which is then hoisted up the mast.

The detachable antenna is easy to lose and it would be better with a solid one.

This elevated conductor is now called the antenna, aerial wire, or air wire.

The wheel was connected to a receiving antenna and the mercury to earth or to an equivalent balancing capacity.

At St John's in Newfoundland he erected a temporary receiving antenna consisting of a wire 400 ft.

The antenna is connected either directively or inductively with the circuit.

The beetles are fierce Antenna of Larva of Gyrinus.

Also he showed that if such an antenna had its horizontal part swivelled round into various directions the current created in a distant receiver antenna varied with the azimuth, and when plotted out in the form of a polar curve gave a curve of a peculiar figure-of-8 shape.

Marconi also showed that if such a bent receiving antenna was used the greatest oscillations were created in it when its insulated end pointed directly away from the sending station.

At the receiving end are a similar antenna and resonant circuit, and a telephone is connected across one part of the latter through an automatic interrupting device called by Poulsen a " ticker."

One important measurement is that of the wave-length emitted from an antenna.

This helix is presented or held near to the antenna, and the length of it shortened until oscillations of the greatest intensity are produced in the helix as indicated by the use of an indicator of fluorescent paper.

If, then, a long copper bar which forms part of this circuit is placed in proximity to the transmitting antenna and the handle moved, some position can be found in which the natural time period of the cymometer circuit is made equal to the actual time period of the telegraphic antenna.

The neon tube glowed when it was in resonance with the wireless telegraph antenna.

In these forms, however, the third joint is really a complex, which in many families bears in addition a jointed bristle (arista) or style, representing the terminal joints of the primitive antenna.

Function of receive antenna is extraction energy from electromagnetic field.

G, enlarged view of the antenna f.

But the proximal pair are often fused into a single median antenna (supplied, however, by two nerves), and in one case at least the distal pair may be similarly fused.

The extraing to foot of rotifers; at, median blastoporic opening of antenna, united by a nerve to br, brain the cloaca leads us to a (letter omitted in B); bl, bladder, re ver y different view, which ceiving ramified kidney in B, C, D; finds negative support f, foot, and f.g, its cement-gland;.

Bdelloidaceae; foot with two toes and accessory spurs or a simple perforated disk; body telescopic at either end, with an antero-dorsal proboscis ending in a ciliate cup and bearing the proximal antenna; corona usually bilobed, very wheel-like.

The antennae of these weevils are short and end in a knob; those of the Longicorns are very much larger, but the weevil-like look is produced by the presence of a knob-like swelling upon the third joint, the terminal portion of the antenna being so extremely fine as to be almost invisible.

When the eye-stalk is removed from a living lobster or prawn, it is found that under certain conditions a many-jointed appendage like the flagellum of an antennule or antenna may grow in its place.

While little importance is to be given to such characters as the unsegmented body, the small number of limbs and the absence of a shell-fold and of paired eyes, it has, on the other hand, preserved archaic features in the form of the limbs and the masticatory function of the antenna.

It appears from observation of the embryo that whilst the first prosthomere of Centipedes has its appendages reduced and represented only by eye-patches (as in Arachnida, Crustacea and Hexapoda), the second has a rudimentary antenna, which disappears, whilst the third carries the permanent antennae, which accordingly correspond to the second antennae of Crustacea, and are absent in Hexapoda.

The accessories include a mag mount type whip antenna with several meters of coaxial cable.

In 1937 another radio engineer, Grote Reber, began work with a parabolic reflector antenna 9.7 m in diameter.

Obviously with with Ridge Hill being west, and Sutton Coldfield being north, what I needed was an omnidirectional antenna.

This is achieved using a specially designed splitter box to feed each dipole antenna with the correct RF signal phase.

A high-gain antenna can boost wireless coverage on a single floor.

If this is the case you may need to purchase an additional re-radiating antenna, price £ 69.95 inc vat for optimum performance.

The Flag Officer's Pennant is just visible below the radar antenna.

The post mounting clamp supplied enables the antenna to be fixed to a suitable horizontal or vertical post of up to 20mm diameter.

Connections are also available for external loud speaker and the Icom automatic antenna coupler.

The main function of the antenna coupler is to provide a link to an external antenna.

During our trial period the antenna was always used on the vehicle dashboard with no adverse effects.

This is the simplest type of antenna, a half wave dipole.

It might use a small dish antenna bought mail-order and some parts picked up at a surplus store.

Having less " capture area " is what makes this antenna less efficient.

Antenna digs in... Brain experts at the Scripps Research Institute in California have come up with a novel strategy for shedding excess flab.

This antenna is most useful in urban areas having reasonably strong signals coming from all directions and few multipath interference problems.

A standard dipole radiation pattern is not isotropic - it looks bit like a donut with the antenna in place of the hole.

The antenna should be horizontally mounted with a clear view of 75% of the sky.

These effects are examined in a 1.5 ton niobium resonant bar antenna.

The transmit antenna has low gain so can be made omnidirectional.

The VHF antenna is a cylindrical paraboloid of dimension 40 x 120 meters, in four sections.

Please see funding section of website for more details or contact your local MEDIA Desk / Antenna for more details.

Its design conceals the antenna inside a smoothly contoured form that conveys a crisp, business-like sense of style.

The feed beam completely illuminates the reflector antenna without too much spillover.

There are 4 pi steradians in a complete surrounding surface of the antenna.

Furthermore, by using high dielectric constant substrates the slot antenna can be used at the various mobile communication bands.

It has sometimes been claimed that Edison's proposed elevated plates anticipated the subsequent invention by Marconi of the aerial wire or antenna, but it is particularly to be noticed that Edison employed no spark gap or means for creating electrical high frequency oscillations in these wires.