quarter-wave transmission line


Also found in: Acronyms.

quarter-wave transmission line

[′kwȯrd·ər ‚wāv tranz′mish·ən ‚līn]
(electromagnetism)
Mentioned in ?
References in periodicals archive ?
In class F, to approximate a 100 percent collector efficiency, one or several parallel circuits tuned at the harmonic components or a quarter-wave transmission line are used as the parallel circuit single-frequency equivalent.
If this impedance is normalized to the system impedance of 50 [omega] plotted on a Smith Chart and rotated the length of the quarter-wave transmission line, 90[degrees], the resulting normalized impedance is 0.20 [omega].
The quarter-wave transmission line required to set the operating frequency consists of a portion of the MMIC, the bond wire length, the lead frame and the coplanar waveguide (CPW) line on the printed circuit board.
In general, to obtain a desired input impedance, a quarter-wave transmission line is used, or the antenna is fed in a nonradiating edge point having the desired input impedance.
The circuit configuration consists of two PIN diodes and a lumped quarter-wave transmission line section, as shown in Figure 2.
(3) Alternatively, it can be realized with quarter-wave transmission lines, (1) as shown in Figure 2.