Showing results: 91 - 105 of 916 items found.
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ERAVANT
In radio communication, an omnidirectional antenna is a class of antenna which radiates equal radio power in all directions perpendicular to an axis (azimuthal directions), with power varying with angle to the axis (elevation angle), declining to zero on the axis.[1][2] When graphed in three dimensions (see graph) this radiation pattern is often described as doughnut-shaped. Note that this is different from an isotropic antenna, which radiates equal power in all directions, having a spherical radiation pattern. Omnidirectional antennas oriented vertically are widely used for nondirectional antennas on the surface of the Earth because they radiate equally in all horizontal directions, while the power radiated drops off with elevation angle so little radio energy is aimed into the sky or down toward the earth and wasted. Omnidirectional antennas are widely used for radio broadcasting antennas, and in mobile devices that use radio such as cell phones, FM radios, walkie-talkies, wireless computer networks, cordless phones, GPS, as well as for base stations that communicate with mobile radios, such as police and taxi dispatchers and aircraft communications.
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ERAVANT
A sector antenna is a type of directional microwave antenna with a sector-shaped radiation pattern. The word "sector" is used in the geometric sense; some portion of the circumference of a circle measured in degrees of arc. 60°, 90° and 120° designs are typical, often with a few degrees 'extra' to ensure overlap and mounted in multiples when wider or full-circle coverage is required (see photos below). The largest use of these antennas is as antennas for cell phone base-station sites. They are also used for other types of mobile communications, for example in Wi-Fi networks. They are used for limited-range distances of around 4 to 5 km.
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PCTEL, Inc
As a custom antenna manufacturer, our embedded and external custom antennas are designed to meet unique customer requirements and deliver exceptional performance utilizing the latest cellular, WiFi, Bluetooth, LMR, LoRa, ISM, IoT, and GPS/GNSS technologies.
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COM201B -
CAES
CAES offers monopole antennas for terrestrial applications such as fixed-site, man-portable and vehicular. CAES Monopole Antennas are designed to provide highly efficient, wideband coverage with radiation patterns that are omnidirectional in the azimuth plane, allowing a 360° field of view.
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Com-Power Corporation
Biconical antennas are used for emissions and immunity testing to meet various EMC standards specified by FCC, CISPR and EN. The broadband characteristics of the biconical antenna make it a good choice for making sweep measurements and for automated measurement systems.
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Rohde & Schwarz GmbH & Co. KG
Rohde & Schwarz monitoring antennas combine very high sensitivity with high gain up to 44 GHz, to capture even the weakest signals in a wide dynamic range.Their outstanding electrical performance, sturdy design and low weight ensure easy handling, making them ideal for stationary or mobile monitoring under extreme outdoor conditions. We can also tailor monitoring antennas to customer requirements. Rohde & Schwarz offers a full portfolio of monitoring antennas, including handheld, directional and omnidirectional stationary, directional and omnidirectional mobile and semi-mobile antennas, along with any necessary accessories.
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iP30z -
Buddipole, Inc.
The iP30z iPortable Antenna SWR Analyzer is designed for field use and is an excellent choice for working with the Buddipole line of antennas. This compact battery powered unit has an easy to read frequency display and measures SWR as well as Z (impedance) in the HF Band. The SWR readings quickly show you the actual VSWR measurement. This is the easiest way to adjust your antenna quickly in the field without any guesswork.
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Schwarzbeck Mess Elektronik
Active Electric Field Probe with Biconical Elements9 kHz - 300 MHz12 µV/m - 65 V/mconst. antenna factor typ. 46 dB/m high symmetrybuilt in rechargeable batteryThe switchable preamplifier improves the antenna factor to 20 dB/m.
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ZHX7-0.009-200-1486 -
COM-MW Co., Ltd.
Loop Antenna, Frequency 0.009~200MHz, Linear Polarization, N-Female
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CAES
Conformal Antennas, which often aim to replicate the performance of conventional or protruding antennas, but in a form factor that is flush or near flush to the aircraft skin, are available in a wide variety of shapes and sizes as necessitated to meet the outer mold line of specific airframes.
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Techimp HQ S.r.L
Horn antenna is a partial discharge sensor designed to receive electromagnetic (EM) emissions from a PD occurring in electric assets like GIS and GIL or MV and HV power transformers. It is a broadband antenna with a flat response which makes Horn antenna suitable in a number of different applications. It has been optimized to operate in a frequency range suitable for PD activity monitoring and it was designed to provide maximum sensitivity and high gain.
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SixPak -
Array Solutions
The SixPak has two components: a relay matrix and a control box, there are several options for the controller.The relay matrix allows the selection of any 6 antennas by 2 radios or feedlines. Its lockout circuitry prevents both radios from selecting the same antenna. (The 6x1 type of SixPak is now replaced by our RatPak remote 6 way antenna switch.)The usual set-up has one SixPak dual rotary control box, which is manually operated from the radios positions. The control box for the 6x2 contains two rotary switches and 12 LEDs, so the operator can see which antennas are selected.