Phase shift module — A phase shifter is a microwave network which provides a controllable phase shift of the RF signal [Microwave Solid State Circuit Design, 2nd Ed., by Inder Bahl and Prakash Bhartia, John Wiley Sons, 2003 (Chapter 12)] [RF MEMS Theory, Design and… … Wikipedia
Passive radar — systems (also referred to as passive coherent location and passive covert radar) encompass a class of radar systems that detect and track objects by processing reflections from non cooperative sources of illumination in the environment, such as… … Wikipedia
Passive cooling — refers to technologies or design features used to cool buildings without power consumption, such as those technologies discussed in the Passive house project.Passive coolingThe term passive implies that energy consuming mechanical components like … Wikipedia
Passive transport — means moving biochemicals and other atomic or molecular substances across membranes. Unlike active transport, this process does not involve chemical energy, because, unlike in an active transport, the transport across membrane is always coupled… … Wikipedia
Passive optical network — A passive optical network (PON) is a point to multipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32 128. A PON consists of an … Wikipedia
Passive solar building design — Elements of passive solar design, shown in a direct gain application … Wikipedia
Passive differentiator circuit — Figure 1: Capacitive Differentiator … Wikipedia
Passive solar — For the application of passive solar technologies in buildings, see passive solar building design. Passive solar technologies are means of using sunlight for useful energy without use of active mechanical systems (as contrasted to active solar).… … Wikipedia
Passive Immunisierung — Eine Schutzimpfung. Zu sehen ist, wie der Impfstoff in den Deltamuskel gespritzt wird. Die Impfung ist eine vorbeugende Maßnahme gegen verschiedene Infektionskrankheiten und wird deshalb auch Schutzimpfung genannt. Man unterscheidet aktive… … Deutsch Wikipedia
Phase-locked loop — PLL redirects here. For other uses, see PLL (disambiguation). A phase locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input reference signal. It is an electronic… … Wikipedia
Phase-shift keying — Passband modulation v · d · e Analog modulation AM · … Wikipedia