Radio frequency (RF) represents the oscillation rate of electromagnetic radio waves, which can range from 9 kHz to 300 GHz. An RF field can be used for different kinds of wireless broadcasting and communications with the help of antennas and transmitters. Devices such as mobile phones, two-way radios as well as radio and television broadcast stations, Bluetooth, WiFi, frequency synthesizers, and satellite communication systems all use RF technology. Even applications outside of communications like microwave ovens and wireless devices like remote controls for TVs operate at radio frequencies.
The RF spectrum is divided into different ranges or bands:
- Very Low Frequency (VLF) – 9 kHz to 30 kHz
- Low Frequency (LF) – 30 kHz to 300 kHz
- Medium Frequency (MF) – 300 kHz to 3 MHz
- High Frequency (HF) – 3 MHz to 30 MHz
- Very High Frequency (VHF) – 30 MHz to 300 MHz
- Ultra High Frequency (UHF) – 300 MHz to 3 GHz
- Super High Frequency (SHF) – 3 GHz to 30 GHz
- Extremely High Frequency (EHF) – 30 GHz to 300 GHz
Frequency synthesizers are part of RF equipment and RF development. These are electronic circuits capable of generating a range of frequencies from an oscillator or time base. A number of modern consumer devices such as radio receivers, GPS systems, mobile phones and televisions feature frequency synthesizers. Many military devices and navigation equipment also use synthesizers
Other Technologies
There are some devices and technologies that use a wider portion of the electromagnetic radiation spectrum. For instance, there are those used in electronic warfare, automated test equipment, unmanned aerial vehicles, jammers and simulators that cover a bigger frequency range like ultra wideband (UWB), for example.
Ultra wideband is a wireless technology capable of transmitting huge amounts of data over a wide spectrum of frequency bands using very little power. This kind of technology can also carry signals through obstacles like doors. There are advantages to using this kind of technology including its ability to transmit large amounts of data over a communications channel. Another advantage of UWB is its low intercept probability due to its use of low transmission power. UWB also covers a wide range of frequencies thus lending it resistant to jamming.
Manufacturers
Synergy Microwave has long been a leader of manufacturing a broad range of synthesizers noted for their exceptional phase noise, wide band width, buffered output, interactive communication and small size surface mount. Please visit our web site at www.pentech.com and see the different innovative products that Synergy Microwave offers. If you have any questions please write us at sales @pentech.com
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