At mmWave Surface Mount Microstrip Filters are key to reducing cost.

Posted by Peter Matthews on Nov 15, 2018 10:06:30 AM

Frequencies in the mmWave spectrum play a key role in 5G communications. RF technology that was developed around existing mmWave applications has evolved to encompass the needs of 5G wireless access. Components for such systems need to be selected for performance and cost – commercial systems are subject to intense price pressure and so both the purchase cost and the implementation cost of a component become important factors in selecting devices for a new design. Another key consideration can be size constraints and the need to preserve valuable board space.

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Topics: Microstrip, Filter, mmWave

Microstrip Filters deliver small size at high frequencies

Posted by Peter Matthews on Nov 7, 2018 4:47:46 PM

When selecting a filter implementation one factor that is common across all frequencies is optimizing the size of the filter given the application and the required performance.

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Topics: mmWave, Bandpass, Filter, Microstrip

Filter Shape Factor and Selectivity

Posted by Peter Matthews on Oct 26, 2018 4:26:00 PM

An ideal filter

The Ideal Filter would have unit gain (0dB) in its pass band and a gain of zero (-infinity dB) in its stop band. Between pass band and stop band there would be no indecision and would transition from 0dB to -infinity dB asymptotically. It would pass only the required frequencies without adding or subtracting anything from the signal and like a very discrete and fastidious butler we would not see it - just its perfect management of the frequencies in its care.

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Topics: Bandpass, Filter

Spectral Efficiency and mmWave Bandpass Filter Temperature Stability.

Posted by Peter Matthews on Oct 12, 2018 12:06:33 PM

In an earlier Blog post we discussed the Shannon-Hartley Theorem in the context of 5G mmWave applications:

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Topics: mmWave, Filter, 5G

An Introduction to the 5G Frequency Spectrum

Posted by Peter Matthews on Sep 19, 2018 3:32:01 PM

Fifth Generation (5G) communication systems are being planned to enable a hundred-fold increase in user data-rates – and with this increase comes a need for significant increases in bandwidth over what is currently available.

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Topics: mmWave, 5G, Filter

RF Filter Terminology and specifications.

Posted by Peter Matthews on Sep 10, 2018 10:59:41 AM

This document is designed to act as a quick reference on some terms that are used to discuss filter technology.

There are four key Filter behaviors that sort them into types: Low Pass, High Pass, Band Pass and Band Stop.

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Topics: Filter, Bandpass, Lowpass, Highpass, Bandstop

Welcome To The Knowles Precision Devices Blog

Posted by Peter Matthews on Sep 9, 2018 12:00:00 PM

Insights Into Precision Passive Devices

Welcome to our blog, where we will explore the latest insights and developments at Knowles Precision devices and the markets we serve.

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Insights Into Precision Passive Devices

Knowles Precision Devices is a premier global source for Capacitors, RF Filters, EMI Filters, Resonators, non-magnetic components and advanced dielectric materials. An umbrella for the brands of Compex, DLI, Johanson MFG, Novacap, Syfer and Voltronics, Knowles Precision Devices serves a variety of markets including military, aerospace/avionics, medical equipment, implantable devices, EMI and connector filtering, oil exploration, instrumentation, industrial electronics, automotive, telecoms and data networks.

This Blog will provide insights into:

  • Filters for 5G and mmWave
  • Capacitors for High Voltage
  • Capacitors for High Reliability

and much more. Subscribe below to stay informed.

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