Lattice phase equaliser

<p>A lattice phase equaliser or lattice filter is an example of an <a href="/facts/All-pass_filter/MbLLEH7I">all-pass filter</a>. That is, the <a href="/facts/Attenuation/XP4vX360">attenuation</a> of the filter is constant at all <a href="/facts/Frequency/QUSbPaW8">frequencies</a> but the relative <a href="/facts/Phase_(waves)/cpGtuVll">phase</a> between input and output varies with frequency. The lattice <a href="/facts/Electronic_filter_topology/B1lMjhKB">filter topology</a> has the particular property of being a <a href="/facts/Constant-resistance_network/Wl7oxFLd">constant-resistance network</a> and for this reason is often used in combination with other constant-resistance filters such as <a href="/facts/Zobel_network/zycPEEer">bridge-T equalisers</a>. The <a href="/facts/Topology_(electronics)/rEeoJRC9">topology</a> of a lattice filter, also called an X-section, is identical to <a href="/facts/Bridge_circuit/TjwcbgwT">bridge topology</a>. The lattice phase equaliser was invented by <a href="/facts/Otto_Zobel/7337mSlc">Otto Zobel</a> using a filter topology proposed by <a href="/facts/George_Ashley_Campbell/8bErxXt5">George Campbell</a>.
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Lattice phase equaliser open-in-new

Lattice phase equaliser