Antenna Characteristics and Deployment Training

Antenna Characteristics and Deployment Training

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Introduction:

Antenna Characteristics and Deployment Training Course Description

This three-day Antenna Characteristics and Deployment Training course teaches the basics of antenna and antenna array theory. Fundamental concepts such as beam patterns, radiation resistance, polarization, gain/directivity, aperture size, reciprocity, and matching techniques are presented.

Different types of antennas such as dipole, loop, patch, horn, dish, and helical antennas are discussed and compared and contrasted from a performance/applications standpoint. The locations of the reactive ear-field, radiating near-field (Fresnel region), and far-field (Fraunhofer region) are described and the Friis transmission formula is presented with worked examples. Propagation effects are presented.

Antenna arrays are discussed, and array factors for different types of distributions (e.g., uniform, binomial, and Tschebyscheff arrays) are analyzed giving insight to sidelobe levels, null locations, and beam broadening (as the array scans from broadside.) The end-fire condition is discussed. Beam steering is described using phase shifters and true-time delay devices. Problems such as grating lobes, beam squint, quantization errors, and scan blindness are presented. Antenna systems (transmit/receive) with active amplifiers are introduced. Finally, measurement techniques commonly used in anechoic chambers are outlined. The textbook, Antenna Theory, Analysis & Design, is included as well as a comprehensive set of course notes.

Duration: 3 days

Antenna Characteristics and Deployment Training
 
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Customize It:

• If you are familiar with some aspects of Antenna Characteristics and Deployment Training, we can omit or shorten their discussion.
• We can adjust the emphasis placed on the various topics or build the Antenna Characteristics and Deployment Training course around the mix of technologies of interest to you (including technologies other than those included in this outline).
• If your background is nontechnical, we can exclude the more technical topics, include the topics that may be of special interest to you (e.g., as a manager or policy-maker), and present the Antenna Characteristics and Deployment Training course in manner understandable to lay audiences.

Objectives:

After completing this Antenna Characteristics and Deployment Training course, attendees will be able to:

◾ Basic antenna concepts that pertain to all antennas and antenna arrays.
◾ The appropriate antenna for your application.
◾ Factors that affect antenna array designs and antenna systems.
◾ Measurement techniques commonly used in anechoic chambers.

Antenna Characteristics and Deployment Training – Course Outlines:

◾ Basic concepts in antenna theory. Beam patterns, radiation resistance, polarization, gain/directivity, aperture size, reciprocity, and matching techniques.
◾ Locations. Reactive near-field, radiating near-field (Fresnel region), far-field (Fraunhofer region) and the Friis transmission formula.
◾ Types of antennas. Dipole, loop, patch, horn, dish, and helical antennas are discussed, compared, and contrasted from a performance/applications standpoint.
◾ Propagation effects. Direct, sky, and ground waves. Diffraction and scattering.
◾ Antenna arrays and array factors (e.g., uniform, binomial, and Tschebyscheff arrays).
◾ Scanning from broadside. Sidelobe levels, null locations, and beam broadening. The end-fire condition. Problems such as grating lobes, beam squint, quantization errors, and scan blindness.
◾ Beam steering. Phase shifters and true-time delay devices. Some commonly used components and delay devices (e.g., the Rotman lens) are compared.
◾ Measurement techniques used in anechoic chambers. Pattern measurements, polarization patterns, gain comparison test, spinning dipole (for CP measurements). Items of concern relative to anechoic chambers such as the quality of the absorbent material, quiet zone, and measurement errors. Compact, outdoor, and near-field ranges.
◾ Questions and answers.

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