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{{Short description|Microwave network module}} {{about|the microwave device|the guitar effect|Phaser (effect)}} ...

{{about|radio-frequency (RF) or microwave active circulators|other uses|Circulator (disambiguation)}} ...rculation. Other (external) circuitry connects to the circulator ports via transmission lines. An ideal three-port active circulator has the following [[scattering ...

[[File:TransmissionLineDefinitions.svg|thumb|310px|A [[transmission line]] is drawn as two black wires. At a distance ''x'' into the line, ther The general expression for the characteristic admittance of a transmission line is as follows: ...

{{Short description|Measurement technique in microwave engineering}} ...Permeability (electromagnetism)|permeabilities]] of material samples for [[microwave]] frequencies. The method is based on insertion of a material sample with a ...

[[File:quarter wave impedance transformer.svg|thumb|350px|Using a transmission line as an impedance transformer.]] ...e transformer''', often written as '''λ/4 impedance transformer''', is a [[transmission line]] or [[waveguide]] used in electrical engineering of length one-quarte ...

...'''isolator''' is a [[Two-port network|two-port]] device that transmits [[microwave]] or [[radio frequency]] power in one direction only. The non-reciprocity o ...om the effects of conditions on its output side; for example, to prevent a microwave source being detuned by a mismatched load. ...

* The transmission of FM audio (including Stereo subcarriers) is only overall the 3rd largest * [[Digital Video Broadcast|DVB]] like transmission systems, with their groups of mathematically related carriers are not quite ...

...efficiency, high speed, and low [[Dispersion (optics)|dispersion]] in the microwave frequency regime. ...r, self-sustained oscillations may be obtained without the need for the RF/microwave amplifier in the loop. ...

...frequency ranges, e.g., in the static limit or at [[Microwave spectroscopy|microwave]] frequencies. ...

...If we take the limit as Δℓ goes to zero, we have a good description of the transmission line. Notice that as Δℓ is made smaller and smaller, both ΔL and ΔC decreas ...mery, Carol Gray; Dicke, Robert Henry; Purcell, Edward M., ''Principles of Microwave Circuits'', IEE, 1948 {{ISBN|0863411002}}. ...

...with the same impedance as that of the [[characteristic impedance]] of the transmission line, will have no reflections and therefore no mismatch loss. Mismatch lo ...mismatch does not result in any loss ("wasted" signal), except through the transmission line. This is because the signal reflected from the load is transmitted bac ...

...[[Power dividers and directional couplers#Hybrids|3 dB coupler]] used in [[microwave]] systems.<ref> ...l structure of the magic tee makes it less readily constructed in [[planar transmission line|planar technologies]] such as [[microstrip]] or [[stripline]]. ...

...]] frequencies. Since surface plasmon polaritons cannot exist naturally in microwave and terahertz frequencies due to [[Dispersion (optics)|dispersion]] propert ...="maier-plasmonics-book"/> Nevertheless, for lower frequency bands such as microwave and terahertz, surface plasmon polariton modes are not supported; metals fu ...

{{Short description|Device used for microwave measurements}} ...[[Schottky diode]] detector and [[VSWR meter]] rather than an expensive [[microwave power meter]]. ...

...icularly useful for designing [[distributed-element filter]]s for use at [[microwave]] frequencies. Commensurate lines are [[transmission line]]s that are all the same electrical length, but not necessarily the sa ...

...29/JC093iC03p02321|title=Principal component analysis of satellite passive microwave data over sea ice|journal=Journal of Geophysical Research: Oceans|date=Marc ...ino C. Comiso|date=2009|title=Enhanced Sea Ice Concentrations from Passive Microwave Data|url=https://nsidc.org/sites/nsidc.org/files/files/data/pm/Bootstrap_Al ...

...al"/> The Weyl identity is largely used to characterize the reflection and transmission of spherical waves at planar interfaces; it is often used to derive the [[G ...egral is commonly encountered in [[Monolithic microwave integrated circuit|microwave integrated circuit]] analysis and electromagnetic radiation over a stratifi ...

...> The authors presented a platform for integrating all the components of a microwave circuit inside a single substrate, with a rectangular cross-section. Using ...cteristics of substrate integrated waveguide |journal=IEEE Transactions on Microwave Theory and Techniques |volume=53 |issue=1 |pages=66–73 |doi=10.1109/TMTT.20 ...

...tic impedance. This can happen, for instance, if two lengths of dissimilar transmission lines are joined. ...the same phenomenon as optical reflections in [[fibre-optic]] lines and [[microwave]] reflections in [[waveguide]]s. ...

...progressive phase difference between elements such that the beam of radio transmission is in the desired direction. The beam direction is controlled by switching ...a elements fed by a Butler matrix are typically [[horn antenna]]e at the [[microwave]] frequencies at which Butler matrices are usually used.<ref>Lipsky, p. 129 ...