https://buildyourownantenna.blogspot.com/2014/07/double-biquad-sector-antenna-for-36-ghz.html
Build Your Own Antenna: Double BiQuad sector antenna for 3.6 GHz / WiMAX
How to Build Your Own Double BiQuad Antenna for internet. Home made Homemade antenna
build your own
https://webrtc.googlesource.com/src/webrtc/+/90492b683f68f7405de045aae1dade880bae056f/modules/audio_processing/level_controller/biquad_filter.h
modules/audio_processing/level_controller/biquad_filter.h - src/webrtc - Git at Google
https://jp.mathworks.com/help/dsp/ref/biquadfilter.html
Biquad Filter - (To be removed) Model biquadratic IIR (SOS) filters - Simulink
The Biquad Filter block independently filters each channel of the input signal with the specified biquadratic infinite impulse response (IIR) filter.
to bebiquadfilterremoved
https://au.mathworks.com/matlabcentral/answers/2176242-biquad-with-external-coefficient
Biquad with external coefficient - MATLAB Answers - MATLAB Central
Biquad with external coefficient. Learn more about biquad DDS Blockset
biquadexternalcoefficientmatlabanswers
https://www.atlantis-press.com/proceedings/cac2s-13/6323
Current Controlled Current-Mode SITO Biquad Universal Filter Using CCTAs | Atlantis Press
This paper presents a current controlled current-mode single input three output (SITO) biquad universal filter employing current conveyor trans-conductance...
universal filtercurrentcontrolledmodesito