What is a stripline transmission line?
A stripline is a type of transmission line based on planar microwave circuitry. It typically consists of a conducting strip surrounded by dielectric material and sandwiched between two conducting ground planes.
What is the difference between microstrip and stripline?
The main difference between these types of traces is their location in the PCB: microstrips are on the surface layer, while striplines are on an inner layer between two reference planes. The placement of the reference planes is important as this is what makes a microstrip or stripline trace.
What is microwave stripline?
Microstrip is a type of electrical transmission line which can be fabricated with any technology where a conductor is separated from a ground plane by a dielectric layer known as the substrate. Microstriplines are used to convey microwave-frequency signals.
How does a stripline work?
In a stripline, the current return path for a high-frequency signal trace is provided above and below the signal trace on the ground (power) planes. Due to this arrangement, the high-frequency signal remains inside the PCB leading to fewer emissions and also provides shielding against incoming spurious signals.
Which mode of propagation is supported by a stripline?
TEM wave
Which mode of propagation is supported by a strip line? Explanation: Since a stripline has 2 conductors and a homogeneous dielectric, it supports a TEM wave, and this is the usual mode of operation.
What do u mean by characteristic impedance?
Definition of characteristic impedance : the impedance of a uniform alternating-current transmission line of indefinite length (as a long telephone cable) measured at the input end where the voltage is applied.
What is the characteristic impedance of a lossless transmission line?
Transmission Lines For the lossless line R = 0 = G; hence, the attenuation constant α = 0, and the characteristic impedance Z0 is real.
What is the significance of ground plane on a microstrip transmission line?
This is important because if there are components going to ground the impedance of the transmission line would change significantly when the ground plane has to be drawn closer to the microstrip for the components (such as 0201 or 0402).
Which statement is false about microstrip line over stripline?
Hence Microstripline is more radiative than stripline but it is easier for component integration due to stripline being totally covered structure. So the correct answer is option (1).
Why can a pure TEM mode not be propagated in a microstrip line?
For this reason the microstrip line cannot support a pure TEM wave, since the phase velocity of TEM fields in the dielectric region would be c/√εr, but the phase velocity of TEM fields in the air region would be c. Thus , a phase mismatch occurs at the dielectric- air interface.
When a transmission line has a load impedance same as that of the characteristic impedance?
Explanation: When a transmission line load impedance is same as that of the characteristic impedance, the line is said to be matched.