Biconical Antennas
attenna conductors are flared into two cones diametrically opposed, sharing a common axis and vertex.
See Also: Antennas, Broadband Antennas, Log Periodic Antennas, Directional Antennas, HF Antennas, Horn Antennas, Isotropic Antennas, Loop Antennas, Antenna Software, Antenna Analyzers, Dipole Antennas
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Antenna, Log Periodic
EM-6956 | 500 MHz – 3 GHz
The Electro-Metrics EM-6956 Log Periodic Antenna operates over the .5-3 GHz frequency range. The broadband frequency capacity of the EM- 6956 eliminates the need for band switching, element extension or external tuning.
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Three Loop Antenna
VVLA-30M
The three loop antenna VVLA-30M is a standard measurement antenna according to CISPR15-2005/GB17743-2007 standard
, it can work with LISUN EMI-9KA / EMI- 9KB EMI Receiver System for EUT magnetic field radiation measurement between X, Y and Z planes. The antenna measurement is accurate, switch conveniently and it can completely replace imported products. -
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Passive Magnetic Antennas, TX-Loop Antennas
A passive loop antenna which is matched to a resonance frequency of 13.56 MHz with 370 kHz bandwidth (-3dB)The purpose of the antenna is to produce defined magnetic fields at 13.56 MHz efficiently, i.e. to test near field communication devices (NFC) or RFID equipment.
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Antenna Testing Services
Our chamber measures 28' x 14' x 14' with 12" to 36" pyramidal anechoic absorbers and is fully shielded using a dual layer metal enclosure. Our test chamber is designed to for frequencies ranging from .700 to 6.00 GHz.
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Cable & Antenna Analyzer
CAA-100
ShinewayTech® CAA-100 cable & antenna analyzer can test Return Loss and VSWR of load’ frequency. Also can get Return Loss, VSWR of DTF (distance-to-fault) and Cable Loss. Users can be easy to know the connection of cable & antenna system is reliable whether or not. CAA-100 series with frequency range 25MHz-4GHz and 60dB dynamic range can suitable for 2G/3G/4G/WiMAX system etc. CAA-100 series is the necessary measuring instrument for the new generation of wireless network development, upgrade and maintenance.
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Cassegrain Antennas
In telecommunications and radar, a Cassegrain antenna is a parabolic antenna in which the feed antenna is mounted at or behind the surface of the concave main parabolic reflector dish and is aimed at a smaller convex secondary reflector suspended in front of the primary reflector. The beam of radio waves from the feed illuminates the secondary reflector, which reflects it back to the main reflector dish, which reflects it forward again to form the desired beam. The Cassegrain design is widely used in parabolic antennas, particularly in large antennas such as those in satellite ground stations, radio telescopes, and communication satellites.
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Dual Circular Polarization Conical Horn Antenna
ZLB7-SJ22-33G-1078
Dual Circular Polarization Conical Horn Antenna, Frequency 22~33GHz, Gain 15dBi, 2.92mm Female Connector
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PNA-X Measurement Receiver for Antenna Test
N5264B
A new industry standard for antenna test with 400,000 point per second data acquisition on all five measurement channels Twice as many receivers available compared to any other antenna receiver on the market Replace existing 8530A and 8360 solutions for a system speed improvement that is 10 times faster Built-in 8510/8530A code emulation software provides a drop-in replacement for existing antenna ranges utilizing an 8530A
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Co-Siting & Antenna Sharing
*Multiplexers, Duplexers, Diplexers and Antenna Sharing Combiners
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Antenna Tuners
DU-3000T / DU-3000TB
The DU 3000T and DU3000TB tuners optimize the performance of your antenna and transmitter or SWL receiver by providing adjustable impedance matching. The DU 3000 series also measure the Power and Standing Wave Ratio (SWR), which allows you to tune the indicated SWR to the lowest possible value for the selected transmitfrequency.
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Cable and Antenna Analyzers
Handheld Cable and Antenna Analyzers offer measurement capabilities including precision return loss/VSWR, cable loss and distance-to-fault (DTF) measurements. Handheld analyzers help field technicians perform field verification and fault location to detect problems before they become costly, time-consuming system failures. Site Master is the leading choice for installation, maintenance, and troubleshooting of microwave cables and communication systems in cellular and broadcast industries as well as aerospace and defense.
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Omnidirectional Antennas
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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VECTOR-GUN HANDHELD DIRECTION FINDING ANTENNA SYSTEM
HFDF
National RF's Type HFDF active directional antenna system consists of a high gain RF amplifier coupled to a tunable Faraday shielded loop antenna. Several loop antenna assemblies are available to provide coverage of frequencies in the HF and low VHF spectrum. Due to the nature of a Faraday shielded loop, the antenna exhibits a sharp null through the diametric center of the loop. This null is used to determine the direction of incoming radio signals or to locate electrical noise being radiated from some source. The internal high gain amplifier is used to compensate for the inherent inefficiency of the actual loop at the operating frequency. Overall, the system dynamic response is about +6 dB as compared to the dynamic response of a dipole. To aid in the direction finding process on strong signals, an internal 30 DB attenuator is provided. As the loop antenna presents a bi-directional response, tri-angulation may be required to eliminate the ambiguous signal direction. The line of site of the incoming signal is determined by listening for a signal null on the receiver or by watching the receiver’s S-meter.
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MW AM Broadcast Mobile Antenna System
TUP-3
The TUP-3 system is capable of transmitting efficiently at carrier frequencies from below 1000 kHz to over 1700 kHz. It is rated for power to 5000 watts, 125 percent modulated. Housed is a weatherproof cabinet, the integral tuning unit features high quality electronic components and matches the TUP-3 system to a 50 ohm transmission line. The self-supporting design of the tower also minimizes erection time and complexity.
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Heavy-Duty Antenna Measurement System
0 to 360 degree AZ+/- 90 degree EL Dual-axis high-resolution antenna positionerTwo Precision SMA measurement cablesIncludes DAMS Antenna Measurement Studio ProComplete package includes all accessories
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Antenna
RF Lambda’s standard horn antennas come in a variety of frequency ranges. Various beam widths and gain can be used to configure any system. Radomes and waterproof connector options available upon request.
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Lens Antennas
A lens antenna is a directional antenna that uses a shaped piece of microwave-transparent material to bend and focus microwaves by refraction, as an optical lens does for light.[1] Typically it consists of a small feed antenna such as a patch antenna or horn antenna which radiates radio waves, with a piece of dielectric or composite material in front which functions as a converging lens to collimate the radio waves into a beam.[2] Conversely, in a receiving antenna the lens focuses the incoming radio waves onto the feed antenna, which converts them to electric currents which are delivered to a radio receiver. They can also be fed by an array of feed antennas, called a focal plane array (FPA), to create more complicated radiation patterns.
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AM/FM Antennas
Our range of well-crafted and designed AM/FM antennas keep your onboard entertainment playing.
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Antenna
Beijing KeHuan Century EMC Technology Co,.LTD
Antenna is adjusted using the receiver, use, testing, measurement, etc.
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Antenna Tuner
DU-1500L
Model DU 1500 L is high power antenna tuner that uses and adjustable reactive network for matching the unbalanced 50 ohm output impedance of transmitters and transceivers to a variety of balanced and unbalanced loads.It is usable over a frequency range of 1.8-30 MHz. Provision is made for selecting one of three antennas or for bypassing the matching network.A crossed needles SWR and wattmeter with switchable 200 and 2000 watt scales and selectable peak and average power output reading is included.
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Antenna Measurement Chambers
Antenna measurement chambers can be utilized to make far-field antenna pattern measurements. These chambers are designed either in a rectangular or tapered configuration depending on the frequency range of interest.
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Antennas
Radiall offers a complete range of antennas dedicated to military and industrial applications. It includes radio tactical communications, vehicles, positioning, LMR/PMR and telemetry applications. Additionally, Radiall offers custom designed antennas and high-end support to its customers for any special requirements.
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Frequency and Timing System for ESAs Deep Space Antennas DSA1&2
TimeTech Frequency and Timing System for ESAs Deep Space Antennas DSA1&2
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EMF Measurements Antennas
An isotropic antenna that allows to carry out radiated emission and environment exposure measurement (elettrosmog) to the radio frequencies in proximity of radio and television stations and repeaters for mobile telephone.
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Omni-Directional Antenna
EM-6116 | 2 GHz – 10 GHz
The EM-6116 is a vertically polarized, omnidirectional antenna covering the frequency range 2 to 10 GHz. It is enclosed in a weather resistant radome. Smaller than other similar antennas, the EM-6116 is ideal for covert applications.
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Antenna, Log Periodic
EM-6954 | 70 MHz – 1 GHz
The EM-6954 is designed to meet antenna requirements for both field strength measurement and radiated susceptibility in the 70 MHz to 1 GHz frequency range.
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Antenna Tripod
TXJ7-2000-1257
Antenna Tripod, Non-metallic, Lifting Height 1.2m to 2m, 3/8 " Thread.
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Conical Horn Antennas
Conical gain horns are offered as both standard and custom models with either a circular or rectangular waveguide interface. While conical gain horns with a rectangular waveguide interface can only support linear polarization, models with a circular waveguide interface can support various polarization types including horizontal, vertical, left-handed circular, and right-handed circular polarization for broader applications. The listed models operate across the full waveguide band and offer 23 dB nominal gain, 12 degrees typical half power beamwidth, a 24 dB typical side lobe level and 1.15:1 VSWR at center frequency. The below standard offering covers the frequency range of 8.5 to 140 GHz. However, other frequencies and standard models with 10, 15, 20 and 25 dB gain are also available.
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GPS/GNSS Antenna Signal Splitter 4-Way, TNC Female, IP67 Weatherproof, 1-2 GHz
GPS421
INSTOCK Wireless Components, Inc
GPS421 is a four way, passive, GPS signal splitter ideal for splitting a GPS antenna signal between two receivers while providing a DC current path to power a remotely located active GPS antenna from one receiver while blocking the DC path from the other. Furnished with TNC female connectors all ports. A special feature of this unit is the 200 ohm internal load which provides a current drain for the GPS receiver not powering the active antenna. Some GPS receivers incorrectly sense an antenna fault when there is no current draw. The 200 ohm internal load provides a simulated antenna current drain which prevents receiver faulting. Max voltage rating at the DC blocked ports is 15 VDC; maximum current rating is 75 mA. Max voltage rating at the DC pass port is 50 VDC; max current rating is 2000 mA.
