Other Products / Services #4963913

The central blockage associated with this feed is substantially less than that of a conventional UHF prime focus feed. The feed mounts to the vertex region of the reflector and does not require struts or guy wires. The reduced blockage achieved by this unique feed design provides increased antenna gain and improved side lobe level performance. The integral monopod support provides a focal adjustment of 3 along the focal axis of the reflector to accommodate insitu feed focusing. Operating frequency is 401-476 MHz. Input on this feed is a type N female located at the base of the monopod support. Axial ratio is less than 1.0 dB. VSWR is 1.4:1. This feed is weather sealed and designed to survive 125 mph winds, 1.0 radial ice, -40F to +140F temperatures and corrosive atmosphere as encountered in coastal regions andor heavily industrialized areas.
As part of the design effort for this feed system mWAVE furnished a separate sealed enclosure with fully integrated diplexer, LNA, DC power supply, and interconnecting low-loss cable assemblies. mWAVE also furnished measured test data for the feed and each of the various RF components housed within the enclosure. The model number of the complete system including the, feed, enclosure, and all RF components is FPVCL-043-N-CEC.
SPECIAL NOTE: This style feed can support high power handling requirements making it an excellent candidate for high gain FTS applications. Combining our vertex mounted feed with an appropriately sized reflector yields a high gain FTS antenna at a fraction of the cost of conventional dual and quad helix antennas. Moreover, our vertex mounted feed is weather sealed whereas conventional dual and quad helix antennas are often exposed to the open environment resulting in mechanical and RF degradation. The graph below shows the Estimated Gain vs. Reflector Diameter when combining our vertex mounted feed with a paraboloidal reflector.

mWave designed and tested a pair of dual linear polarized horn antennas for one of the US telemetry flight test ranges. The horns are conical in shape with a sealed aperture window. Inputs are SMA female. The operating frequency of the LS-band horn is 1.4-2.4 GHz. The operating frequency of the C-band horn is 4.40-5.15 GHz. Alternate bandwidths are available. There is a bracket on each model for mounting the horn to a flat surface. The horns are constructed of aluminum and sealed for outdoor use. The finish is gold iridite per MIL-C-5541E with class 1A polyurethane white topcoat Color No. 17875 per FED-STD-595. Every horn is tested for swept return loss data prior to shipment. Serialized copies of the return loss data are shipped with each horn. mWAVE can furnish an outline drawing of each horn model with mounting details upon request.

The MCR03-04-N antenna is mounted on the top of a fully operational platform in the left photo. This antenna is used for transmitting data being collected by other instruments on platforms that are recording barometer data, air & sea temperature, wind speed & gusts and wind direction along with other information related to oceanographic measurements. The gathered data is then transmitted to a GOES satellite and sent back to earth. There are hundreds of weather platformsstations in and around the US that send data that is used for weather trackingpredicting, scientific studies and educational studies just to name a few applications. This antenna was designed for use in high wind and rough sea environments.
Standard patch antennas operating in this frequency band are generally somewhere around 18- 20across by 6-7 in height. mWAVEs MCR03-04-N model is only 9across by 2.75 in height. The radome was manufactured utilizing a UV stabilized heavy wall plastic that can be thermoformed to help keep manufacturing and tooling cost down. There are four clearance holes for 516 hardware located near the 4 outside corners of the antenna for mounting. This rugged, reduced sized, easily mounted antenna also makes a good candidate for a quick deployableportablereplacement antenna when a critical similar antenna site goes down.

This data summarizes the family of directly interchangeable full waveguide bandwidth dual circular polarized low axial ratio prime focus parabolic reflector feeds. This particular feed family was designed for reflectors with fd ratios of 0.35-0.42. The scalar feeds do not contain lossy dielectrics. They are constructed of all metal waveguide components for maximum radiation efficiency. The scalar feeds operate over a full waveguide bandwidth. The model numbers listed below are indicative of feeds having coaxial inputs. However, the scalar style feeds can be purchased with their respective standard waveguide input. All feeds share identical mounting and focal point placement offering a truly interchangeable feed family system. This feature makes them excellent candidates for outfitting antenna test ranges, portable multi-band applications and for use in many other applications. All feeds have a Type 1 gold chromate metal finish and are sealed for outdoor use. Specifications are listed in the table below.

This antenna is designed for use in the C-band telemetry industry but can be used for other communications requirements within the operating band of the antenna. The RF inputs are Type N female connectors located behind the vertex of the main reflector. Alternate connector types are available upon request. The antenna consists of a COTS 4 aluminum reflector, a proprietary vertex mounted feed, and a pipe mount kit offering fine azimuth and elevation adjustment. Pipe mount components are galvanized steel. The finish is mWAVE standard gray paint.

This antenna was designed for use with LSC-band telemetry requirements but can be used for any other communications requirement within the operating frequency band of the antenna. This 4FT diameter antenna is dual linear polarized, operating from 1.40 GHz to 5.15 GHz. The design incorporates our COTS mount for azimuth and elevation adjustment. The RF inputs are SMA female connectors and are located behind the focal point of the main reflector. The RF ports of the antenna are not phase-matched to one another.

Circular Polarization
Sturdy aluminum construction reflector and pipe mount.
All corrosion resistant materials, galvanized and stainless steel hardware
Fine azimuth and elevation adjustment
Type N or SMA Female Connector, 50 Ohm impedance
Mounts to 1.9-4.5 OD pipe (48-114mm)
Optional radome available

Vertex Mounted Feed

NOTES:
Alternate frequency bands of operation are available within 4400-5150 MHz & 5000-5400 MHz.
Single and Dual Linear polarizations are also available.