monolithic filter

monolithic filter

[‚män·ə′lith·ik ′fil·tər]
(communications)
A device used to separate telephone communications sent simultaneously over the transmission line, consisting of a series of electrodes vacuum-deposited on a crystal plate so that the plated sections are resonant with ultrasonic sound waves, and the effect of the device is similar to that of an electric filter.
References in periodicals archive ?
Regardless of a commercial monolithic filter balun with 4dB insertion loss and a slightly off-tuned sensor antenna with -12 dBi gain at 2.4 GHz, the sensor placed at 0.3 mm from the body achieved one meter transmission distance.
The on-chip synthetic TL, which is loaded by the capacitors and the degenerated cross-coupled pair, implements the composite resonators in the monolithic filter [13].
[L.sub.RF] and [L.sub.gnd] represent the inductances of the bondwires at two RF ports and the ground of the monolithic filter. [L.sub.gnd] and the capacitive characteristic of the composite resonator cause the series resonance, generating the additional transmission zero above the passband to disturb the stopband suppression [16].
The first system of this kind, introduced last year and currently available on Peugeot models 607 HDi 2.2 and 406 HDi 2.2, utilizes cerium-based fuel borne catalyst (a fuel additive) and an uncatalyzed monolithic filter. The active regeneration strategy is based on increasing the exhaust temperature through common-rail post injection in conjunction with an oxidation catalyst.
Seevinck, "Companding current-mode integrator: A new circuit principle for continuous-time monolithic filters", Electron.
Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, and many other analog functions.
Active resonators have the obvious advantages of small size and high Q-factor for monolithic filters. However, active resonators reported previously for MMIC filters have tended to use fairly complex topologies that require many power supply lines for different settings of transistor and varactor bias voltages.