Compact Range Overview
16Pages

COMPACT RANGE OVERVIEW

TABLE OF CONTENTS C ompact Range Technology P. 3 S ystem Overview P. 6 M ain Features P. 10 Q uick Guide P. 12 © MVG 2018 Product specifications and descriptions in this document are subject to change without notice. Actual products may differ in appearance from images shown. ntenna measurements in the far-field require that the antenna under test (AUT) be illuminated by a uniform plane wave. To achieve this uniform plane wave illumination, a very large distance between the antenna and the measurement source antenna is required. A compact antenna test range creates a plane wave field at...

Compact Range Technology Compact ranges provide an efficient means for obtaining a uniform plane wave illumination over a test object in a distance substantially shorter than in a comparable far-field range. Compact Ranges use a source antenna, which radiates a spherical wave, in conjunction with one or more reflectors to collimate this spherical wave into a plane wave. Based on the geometrical-optical principle, the parabolic reflector needs precision in its design to achieve expected performance in a wide frequency range; from low frequencies where the compact range reflector is only a...

CORNER OR SIDE-FED GEOMETRIES MVG's standard range geometry is the corner-fed geometry, where the feed is located near the corner between the sidewall and floor. This geometry minimizes direct feed leakage into the quiet zone for most antenna measurement applications. For special applications side-fed and floor-fed compact ranges can be designed and manufactured. COMPACT RANGE FEEDS For the highest test zone performance, a compact range is typically illuminated with a corrugated horn. Several types of corrugated and choked horns are available, offering a choice between amplitude taper and...

LESS IS MORE Particularly suited for the testing of directive antennas, compact ranges offer performance advantages over conventional far-field and near-field ranges, depending on the application. In general, the compact range offers a much smaller overall test facility size than comparable far-field ranges, and provides results with equivalent or better performance indoors than might be achieved on an outdoor range. This has the obvious advantage of high up-time, as logistics and weather are issues that may impede range usage on a long outdoor range. For some applications, the compact...

Network Analizer Switch Drive Interface to DUT DC-DC Power Supply The lowest operational frequency of a compact range system is detemined by the size of the reflector, the edge treatment and the absorbers. The performance of the Compact Range improves in relation to the increase in frequencies to be measured yet is limited to the level determined by the manufacturing accuracy of the reflector. Considering the small sizes of high frequency antennas, the upper frequency can be well above 100 GHz. The RF transmit/receive system is supported by a VNA. Depending on the size of the range, an...

STANDARD SYSTEM COMPONENTS • A typical far-field antenna positioner, generally roll-over-slideover-azimuth with an optional lower elevation axis for pick-up or an optional upper elevation or squint for boresight alignment. • complete range of rotary A positioners and model towers • n optimized combination A of standard, adapted and specialty absorbers • ize of anechoic chamber is S based on selected quiet zone size Reflector System Antennas Feed • arabolic reflector P • errated-edge or rolled-edge S • orner-fed, side-fed, C or floor-fed systems • ptional cross-polarization O enhancement...

Rolled-edge reflector and vertical goniometer for radome measurements inside a compact range facility

• Directive antenna measurements • RCS measurements • Radome measurements • System level measurements SYSTEM CONFIGURATIONS Technology • Compact Range Measurement capabilities • Gain and directivity • 2-D and 3-D radiation pattern • Beamwidth • Sidelobe levels • Radiation pattern in any polarization (linear or circular) and cross-polarization • Radome measurements • RCS measurements • EIRP and G/T (requires additional RF instrumentation) Max. size of DUT • During a full rotation of the DUT, the radiating parts of the DUT must stay within the quiet zone. If accuracy enhancement methods are...

CR-M12 mini-compact range - UTS Australia Compact Range - Antenna Research Lab - Villanova University

# Serrated-edge reflectors System specifications* Quiet Zone Shape Frequency Range Quiet Zone Dimensions (HxWxL) Cross Polarization (typ.) Amplitude Total Variation Amplitude Taper Amplitude Ripple Phase Total Variation Phase Taper Phase Ripple CC = Circular Cylinder EC = Elliptical Cylinder # Rolled-edge reflectors System specifications* Quiet Zone Shape Frequency Range Quiet Zone Dimensions (HxWxL) Cross Polarization (typ.) Amplitude Total Variation Amplitude Taper Amplitude Ripple Phase Total Variation Phase Taper Phase Ripple CC = Circular Cylinder EC = Elliptical Cylinder

Technical Notes Cross polarization: f 1 Long focal length cross pol < -30 dB typical; f 2 Short focal cross pol < -24 bB typical. f 3 Chamber size is initially derived from the reflector geometry. Dimensions indicated are interior dimensions of chamber. I 4 During a full rotation of the DUT, the radiating parts of the DUT must stay within the quiet zone. If accuracy enhancement methods are desired or required, additional space may be needed for the implementation of Antenna Pattern Comparison (APC) and other methods. I 5 RCS: the separation between the QZ backside and back wall absorbers...

MVG - Meeting the Testing Challenges of a Fully Connected World The Microwave Vision Group (MVG) has developed unique expertise in the visualization of electromagnetic waves. These waves are at the heart of our daily lives: smartphones, computers, tablets, cars, trains, planes - these devices and vehicles would not work without them. MVG expertise brings measurement solutions to R&D teams for the characterization of antennas and their performance within these devices, and chamber solutions for EMC testing. MVG innovation remains focused on supplying the world with the most advanced EMF...