Radio-frequency engineering
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| Occupation | |
|---|---|
| Names | Radio-frequency engineer
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Occupation type | technical operator |
| Articles about |
| Electromagnetism |
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Radio-frequency (RF) engineering is a subset of
It is incorporated into almost everything that transmits or receives a radio wave, which includes, but is not limited to, mobile phones, radios, Wi-Fi, and two-way radios. RF engineering is a highly specialized field that typically includes the following areas of expertise:
- Design of antenna systems to provide radiative coverage of a specified geographical area by an electromagnetic field or to provide specified sensitivity to an electromagnetic field impinging on the antenna.
- Design of coupling and transmission line structures to transport RF energy without radiation.
- Application of circuit elements and transmission line structures in the design of oscillators, amplifiers, mixers, detectors, combiners, filters, impedance transforming networks and other devices.
- Verification and measurement of performance of radio frequency devices and systems.[4]
To produce quality results, the RF engineer needs to have an in-depth knowledge of mathematics, physics and general electronics theory as well as specialized training in areas such as wave propagation, impedance transformations, filters and microstrip printed circuit board design.[citation needed]
Radio electronics
Radio electronics is concerned with electronic circuits which receive or transmit radio signals.
Typically, such circuits must operate at
List of radio electronics topics:
- oscillators: Phase-locked loop, voltage-controlled oscillator
- Transmitters, transmission lines, RF connectors
- antenna theory
- Receivers, tuners
- Amplifiers
- demodulators, detectors
- RF filters
- RF shielding, ground plane
- Direct-sequence spread spectrum (DSSS), noise power
- Digital radio
- RF power amplifiers
- Metal–oxide–semiconductor field-effect transistor (MOSFET)s: Power MOSFET, Laterally-diffused metal-oxide semiconductor (LDMOS)
- Bipolar junction transistors
- Baseband processors (Complementary metal–oxide–semiconductor (CMOS))
- integrated circuits)
Duties
Radio-frequency engineers are specialists in their respective field and can take on many different roles, such as design, installation, and maintenance. Radio-frequency engineers require many years of extensive experience in the area of study. This type of engineer has experience with transmission systems, device design, and placement of antennas for optimum performance. The RF engineer job description at a broadcast facility can include maintenance of the station's high-power broadcast transmitters and associated systems. This includes transmitter site emergency power, remote control, main transmission line and
In addition, a radio-frequency design engineer must be able to understand electronic hardware design, circuit board material, antenna radiation, and the effect of interfering frequencies that prevent optimum performance within the piece of equipment being developed.
Mathematics
There are many applications of
See also
- Broadcast engineering
- Information theory
- Microwave engineering
- Overlap zone
- Radar engineering
- Radio resource management
- Radio-frequency current
- SPLAT! (software)
- List of textbooks in electromagnetism
References
- ^ A. A. Ghirardi, Radio Physics Course, 2nd ed. New York: Rinehart Books, 1932, p. 249
- ^ Signal Corps U.S. Army, The Principles Underlying Radio Communication, 2nd ed. Washington, DC: U.S.G.P.O., 1922, p. 191
- ^ Technical Manual TM 11-665: C-W and A-M Radio Transmitters and Receivers. Dept. of the Army, US Government Printing Office. 1952. p. 2.
- ^ "How to Measure Requirement for RF Equipments". 30 January 2018.
- ISBN 9781315350080.
- ISBN 9781580536691.
- ISBN 9783034896337.
External links
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