Custom geometries solutions for RF communications industry - Communications / Telecom / Datacom
Typical Applications - High Pass, Low Pass, Band Pass Filters, Broadband Transformers. RF inductors are special inductors designed to be used in radio frequency (RF) and microwave applications, which are much higher in frequency than AC or DC applications from 10 MHz to several GHz. Since these applications generally need a high Q (Quality factor) value they are best served by low permeability cores and consistent response over a wide frequency range. RF inductors are typically used in mobile communications equipment, like 5G, as high pass filters, low pass filters and bandpass filters in radio communication devices and systems. RF inductors are also used as broadband transformers in powering such devices.
Magnetic cores are used in RF Communications in the form of RF filter inductors and broadband transformers.
RF filter inductors are used in various wireless and broadband communications systems operating at >10MHz to several GHz, including for television and radio broadcasting. The filter inductor is used in low-pass, high-pass, and band-limiting LC filter circuit for signal selection within frequency band of interest. The broadband transformers are used for voltage transformation and impedance matching.
For proper frequency selection, RF filter inductor are designed for high-Q, which can be achieved with low losses relative to the inductance at frequency of interest. In addition, RF filter inductor as well as broadband transformer should have stable inductance over a range of operating conditions, such as varying temperatures and frequencies.
Carbonyl Iron magnetic cores are well suited for RF applications due to low permeabilities (4µ-35µ), which are stable up to high MHz region. The fine powder structure also means carbonyl iron have exceptional low eddy current losses at these high frequencies. Also, low material permeability corresponds to low temperature coefficient of inductance and a linear change in inductance over temperature and frequency.
Inductive Component includes:
- AC Inductor – Low Pass, High Pass, Band Pass Filter
- AC Inductor – Broadband transformer
To contact our engineering group regarding Micrometals solutions for RF Communications applications please use our website contact form or send an e-mail to applications@micrometals.com