Antenna and Array Fundamentals Training 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 near-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.
Duration: 3 days
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- Diameter Protocol Training
- Antenna and Antenna Array Fundamentals Training
- Antenna Engineering, Theory, Analysis and Design Training
- Distributed Antenna System Training (DAS)
- We can adapt this Antenna & Array Fundamentals Training course to your group’s background and work requirements at little to no added cost.
- If you are familiar with some aspects of this Antenna & Array Fundamentals Training course, we can omit or shorten their discussion.
- We can adjust the emphasis placed on the various topics or build the Antenna & Array Fundamentals 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 and Array Fundamentals course in manner understandable to lay audiences.
The target audience for this Antenna & Array Fundamentals course:
- The targeted audience includes line engineers, program managers, and marketing staff who have some involvement in electronic warfare
The knowledge and skills that a learner must have before attending this Antenna & Array Fundamentals course are:
Antenna & Array Fundamentals Training - OBJECTIVES
Upon completing this Antenna & Array Fundamentals course, learners will be able to meet these objectives:
- 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.
This Antenna and Array Fundamentals course is invaluable to engineers seeking to work with experts in the field and for those desiring a deeper understanding of antenna concepts. At its completion, you will have a solid understanding of the appropriate antenna for your application and the technical difficulties you can expect to encounter as your design is brought from the conceptual stage to a working prototype.
Antenna & Array Fundamentals Training - COURSE SYLLABUS
- Basic concepts in antenna theory. Beam patterns, radiation resistance, polarization, gain/directivity, aperture size, reciprocity, and matching techniques.
- RF Field 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.
- Software simulation concepts. Discussion and distinction between: Finite Difference Time Domain (FDTD), the method of moments (MoM), and the Finite Element Method (FEM.) Some commercial codes that use these techniques.
- Throughput and data rates. Various antennas are examined to quantify suitability for data transmission.
- Special topics: The class can be tailored to meet the desired needs of the students.
- Questions and answers.
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