Dipole Antennas
A bilaterally symmetrical straight antenna fed from the center whose length is equal to one-half of the wavelenght of the operating frequency.
See Also: Antennas, Dipoles, Broadband Antennas, Log Periodic Antennas, Directional Antennas, HF Antennas, Biconical Antennas, Horn Antennas, Isotropic Antennas, Loop Antennas, Antenna Software, Antenna Analyzers, Dipole Reference Antennas
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Sector Antennas
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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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Mobile Antenna / Mast Spring Assemblies
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CAL-AV LABS produces a family of mobile antenna springs comprising the Mark-5, Mark-6, and Mark-7. These model series represent three basic sizes: 4.65 inches high for the Mark-5, 6.9 inches for the Mark-6, and 8.45 inches high for the Mark-7, each in its threaded-end style.
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Spiral Antenna UHF Trafo
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UHF Spiral antenna is a partial discharge sensor designed to receive electromagnetic (EM) emissions from a PD occurring in the monitored asset. It is a broadband antenna with a flat response which makes Spiral antenna suitable in a number of different applications. It has been optimized to operate in a frequency range typical for PD activity and it was designed to provide maximum sensitivity and high gain. Its compact and robust design (passive sensor) makes Spiral antenna the optimal sensor for direct installation on high voltage Transformers. It can be virtually applied in any electrical equipment provided that it has apertures or EM transparent surfaces. Contact our sales department for consulting.
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Log-Periodic Antenna
KH30937F
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Beijing KeHuan Century EMC Technology Co,.LTD
KH30937F log-periodic antenna (hereinafter referred to as KH30937F ) is a linearly polarized broadband receiving antenna with a working frequency of 30MHz~1GHz . KH30937F has excellent standing wave ratio characteristics, accurate feeding position, and the best phase relationship between each period on the base. The antenna gain is basically constant, thus ensuring that the antenna factor changes linearly and smoothly with the frequency, which is helpful for accurate difference calculation between each frequency point.
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Antenna, Log Periodic
EM-6947 | 200 MHz – 5 GHz
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The EM-6947 is an ultra-wide bandwidth log periodic dipole array aimed at applications requiring consistent performance over a very wide frequency range. Capable of both receiving and moderate power level transmitting, the EM-6947 can take the place of two or more conventional antennas, allowing you to take full advantage of the tuning range capabilities of modern receiver and spectrum analyzer designs with less inconvenience caused by the need to switch antennas.
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Antenna, Ridged Guide
EM-6969 | 6 GHz – 18 GHz
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The EM-6969 Double Ridged Guide Antenna is a linearly polarized broadband antenna for specification compliance testing. The versatile EM-6969 is constructed of rugged aluminum, which makes it excellent for use under severe field conditions and the size makes it suitable for use in the limited space of a shielded enclosure.
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GNSS Smart Antenna
SPS785
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Fully capable GNSS receiver featuring proven Trimble quality and accuracy priced for a faster return on investment.
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Antenna, Biconical
EM-6917B-1 | 30 MHz To 3 GHz
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The EM-6917B-1, a hybrid combination of the industry standard biconical and log periodic antennas, delivers an unmatched combination of frequency coverage and high power handling capability. Featuring exceptionally broad frequency coverage of 26 MHz to 3 GHz, the EM-6917B-1 eliminates the need for adjustments or switching antennas in most test applications up to 3 GHz, and it does so without compromising power handling capability for transmit applications.
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GNSS/GPS Antennas
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Our GNSS/GPS antenna solutions are designed for applications such as time synchronization, commercial tracking, and precision navigation covering all GNSS frequency bands.
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Array Antennas
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An antenna array (or array antenna) is a set of multiple connected antennas which work together as a single antenna, to transmit or receive radio waves. The individual antennas (called elements) are usually connected to a single receiver or transmitter by feedlines that feed the power to the elements in a specific phase relationship. The radio waves radiated by each individual antenna combine and superpose, adding together (interfering constructively) to enhance the power radiated in desired directions, and cancelling (interfering destructively) to reduce the power radiated in other directions. Similarly, when used for receiving, the separate radio frequency currents from the individual antennas combine in the receiver with the correct phase relationship to enhance signals received from the desired directions and cancel signals from undesired directions. More sophisticated array antennas may have multiple transmitter or receiver modules, each connected to a separate antenna element or group of elements.
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Antenna, Ultra-Wideband, Directional
EM-6945 | 500 MHz – 25 GHz
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The EM-6945 Vector Log Periodic antenna covers the broadest frequency range available in such a small, rugged, deployable package. Offering the uncompromising performance you’ve come to expect from Electro-Metrics, a state-of-the-art design provides the antenna characteristics you need, unmatched by others in the community.
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Double Taper Horn Antenna
MDTH series
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This product is the antenna that corresponds to the radar pulse immunity test for automotive equipments. Automotive manufacturers have required the electric field strength of 600 v/m. Amplifier system and cable will be cheaper, and will contribute to the ecology.
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Handheld Cable and Antenna Analyzer
ZVH
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The R&S®ZVH is a rugged, handy cable and antenna analyzer, designed for use in the field. Its low weight and simple operation make it indispensable for anyone who needs an efficient measuring instrument outdoors for the installation and maintenance of antenna systems.
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Cable & Antenna Analyzers
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Site engineers and technicians have been using sweep testers also known as cable and antenna analyzers to validate installations or to find trouble locations and imperfections in wireless sites.
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Multilingual MM Antenna Analyzer
MMANA-GAL
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MMANA-GAL is an antenna-analyzing tool based on the moment method, which was introduced in MININEC. The program provides ability for changing the language of signs and messages of the program.
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Horn Antennas
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Horn antennas can be used for emissions and immunity testing. These antennas are constructed using light weight aluminum with a corrosion resistant conductive coating for indoor or outdoor use. Each antenna is individually calibrated. The calibration data and certificate will be shipped with each antenna.The high gain reduces input power requirements to generate high electromagnetic field levels for immunity testing. High gain also increases antenna sensitivity to low level signals.
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900 MHz Antenna
PCA900
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A unique and very useful design, the PCA900 antenna provides wide bandwidth from 825 MHz to 1 GHz, moderate gain of 3.7 dB and a semi-directional polar pattern in a compact, rugged package. A BNC connector allows direct connection to receivers and multicouplers with standard 50 ohm coaxial cable. This antenna is an ideal match for systems in the 902-928 MHz and 941-960 MHz ranges.
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TEM Antenna
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TEM antenna is a broadband antenna with a flat response which makes TEM suitable in a number of different applications. It has been optimized to operate in a frequency range typical for PD activity and it was designed to provide maximum sensitivity and high gain. Its compact and robust design (passive sensor) makes TEM the optimal sensor for direct installation on medium voltage Switchgears and motors. It can be virtually applied in any electrical equipment provided that it has apertures or EM transparent surfaces.
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Dual Polarized Broadband Horn Antennas
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Linear polarized dual double ridged broadband antenna for receive and transmit applications made of aluminium.
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Rapid Antenna Testing Services
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At JEM we understand the challenges facing antenna, microwave and communication system engineers, and we realize that accurate measurement of antenna electrical performance is critical. That’s why we offer a range of rapid antenna testing services from 50 MHz to 40 GHz.
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Automatic Antenna Tuner
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Automatic Antenna Tuner has not been released for full Beta testing and production yet as we are solving some firmware issues. We cannot give you a date nor estimate at this time when full production will commence.
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Omnidirectional HF Antennas
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Kratos Defense & Security Solutions, Inc.
Broadband dipole products include the horizontally polarized 1765 antenna for short-to-medium range communications, the 3065 antenna that reduces ground-area requirements, and the 5065 series designed for locations where space is at a premium, including rooftops.
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Cable & Antenna Analyzer
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Shanghai Tarluz Telecom Tech Co., LTD
Adopting new techniques like advanced radio frequency and digital hybrid integration design, broadband and fundamental wave mixing, digital IF processing and intelligent power management, etc., The Cable and Antenna Analyzer has advantages of fast measuring speed, high measurement accuracy, small size, light weight, battery power, touch screen operation and adjustable backlighting. It can measure return loss, standing wave ratio (SWR), impedance, phase, DTF (discontinuity point fixing), etc.
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Active Dual Loop Antenna
KH30936
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Beijing KeHuan Century EMC Technology Co,.LTD
KH30936 active dual loop antenna is used for adjusting, testing, measuring and other receivers. It has many advantages:1. The antenna coverage frequency is wide: 150KHz ~ 30MHz .2. The field strength value is measured according to the correction coefficient within the effective frequency range, which is convenient to use.3. The antenna power is supplied by the host, which is convenient for outdoor measurement.4. Compared with the single loop antenna, the advantage is to read the maximum value directly, which eliminates the tedious steps of rotating the antenna to find the maximum value and the interference of the human body to the signal.
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Monitoring & Drive Test Antennas
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Linear polarized half-wave dipole with 1:1 balun and fixed element length for fieldstrength measurements at TETRA (terrestrical trunked radio) networks.
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Broadband Antennas
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Through high-quality materials and master craftsmanship, our broadband antennas have set the bar high for performance, durability, and quality.
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Antenna Characterization
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Radiometrics Midwest Corporation
Radiometrics Open Area Test Site and 10 Meter Anechoic chamber provide ideal test sites for antenna characterization.
