Electronics

Antenna Technology by Zana Lane PDF

By Zana Lane

ISBN-10: 8132330250

ISBN-13: 9788132330257

This e-book is a whole package deal for wisdom sharing on Antenna know-how. desk of Contents bankruptcy 1 - Dipole Antenna bankruptcy 2 - Horn Antenna bankruptcy three - Radio Telescope bankruptcy four - Parabolic Antenna bankruptcy five - Antenna (Radio) bankruptcy 6 - tv Antenna bankruptcy 7 - Radio Masts and Towers bankruptcy eight - Omnidirectional Antenna & Directional Antenna

Show description

Read or Download Antenna Technology PDF

Similar electronics books

Download e-book for kindle: Fundamentals of Spread Spectrum Modulation by Rodger E. Ziemer

This lecture covers the basics of unfold spectrum modulation, which are outlined as any modulation approach that calls for a transmission bandwidth a lot more than the modulating sign bandwidth, independently of the bandwidth of the modulating sign. After reviewing uncomplicated electronic modulation concepts, the imperative varieties of unfold spectrum modulation are defined.

Download e-book for iPad: The Economics of Human Systems Integration: Valuation of by William B. Rouse

Primary financial rules, equipment, and instruments for Addressing Human platforms Integration concerns and Tradeoffs Human structures Integration (HSI) is a brand new and primary integrating self-discipline designed to assist circulation company and engineering cultures towards extra human-centered platforms. Integrating attention of human talents, barriers, and personal tastes into engineering structures yields vital price and function advantages that another way wouldn't have been entire.

New Photonics Technologies For The Information Age: The by Shoichi Sudo, Katsunari Okamoto PDF

Ubiquitous IT providers are only starting to emerge, but the time is coming after they will actually revolutionize info expertise. in response to groundbreaking papers awarded on the overseas Symposium on New Frontiers for Ubiquitous IT companies, this far-reaching source presents engineers with an in depth examine the technological advancements which are blazing find out how to a brand new info age.

Extra info for Antenna Technology

Sample text

Aperture efficiency over 70% can be achieved. Design The operating principle of a parabolic antenna is that a point source of radio waves at the focal point in front of a parabolic reflector will be reflected into a collimated plane wave beam along the axis of the reflector. Conversely, an incoming plane wave parallel to the axis will be focused to a point at the focal point. A typical parabolic antenna consists of a parabolic reflector with a small feed antenna at its focus, pointed back toward the reflector.

As of 2009, the largest "dish" antenna in the world is the Arecibo Observatory's radio telescope, at Arecibo, Puerto Rico, which has a diameter of 1,000 ft. (305 m). 38 GHz. The dish is built into a valley in the landscape, so it is not steerable. To steer the beam to different points in the sky, the feed antenna is moved. For this reason, the dish actually has a spherical rather than a parabolic shape. A spherical reflector does not have a single focal "point", however, the Arecibo antenna is a three-reflector variety of Gregorian telescope, and uses its secondary and tertiary reflectors to focus the radio waves to a single point.

And stood 20 ft (6 m). tall. By rotating the antenna on a set of four Ford Model-T tires, the direction of the received interfering radio source (static) could be pinpointed. A small shed to the side of the antenna housed an analog pen-and-paper recording system. After recording signals from all directions for several months, Jansky eventually categorized them into three types of static: nearby thunderstorms, distant thunderstorms, and a faint steady hiss of unknown origin. Jansky finally determined that the "faint hiss" repeated on a cycle of 23 hours and 56 minutes.

Download PDF sample

Antenna Technology by Zana Lane


by Michael
4.4

Rated 4.55 of 5 – based on 33 votes