What is grounded coplanar waveguide?
GCPW circuits, also known as conductor-backed coplanar waveguide (CBCPW) circuits, increase the amount of ground around a circuit compared to microstrip by placing ground planes on the bottom of the dielectric material and on the top, on the same plane and on either side of a signal transmission line.
What are the advantages of CPW over coupled lines?
The advantages of coplanar waveguide are that active devices can be mounted on top of the circuit, like on microstrip. More importantly, it can provide extremely high frequency response (100 GHz or more) since connecting to CPW does not entail any parasitic discontinuities in the ground plane.
What is CPW feeding?
The CPW is the feeding which side-plane conductor is ground and centre strip carries the signal. The advantage of CPW fed slot antenna is its wide band characteristics. Hence CPW fed slot antenna is most effective and promising antenna for wideband wireless application.
What is coplanar waveguide in microstrip?
The Coplanar Waveguide is a planar transmission line. It is widely used for microwave Integrated Circuit design. As shown in the figure, Coplanar Waveguide consists of a conductor strip at the middle and two ground planes are located on either sides of centre conductor. All these lie in the same plane.
What is CPW fed antenna?
How does a monopole antenna work?
Like a vertically suspended dipole antenna, a monopole has an omnidirectional radiation pattern: It radiates with equal power in all azimuthal directions perpendicular to the antenna. The radiated power varies with elevation angle, with the radiation dropping off to zero at the zenith on the antenna axis.
What you mean by waveguide?
Definition of waveguide : a device (such as a duct, coaxial cable, or glass fiber) designed to confine and direct the propagation of electromagnetic waves (such as light) especially : a metal tube for channeling ultrahigh-frequency waves.
What is a Conventional coplanar waveguide?
Conventional coplanar waveguide (CPW) consists of a single conducting track printed onto a dielectric substrate, together with a pair of return conductors, one to either side of the track.
What is the function of the ground plane in a waveguide?
The ground-plane serves as a third return conductor. Coplanar waveguide was invented in 1969 by Cheng P. Wen, primarily as a means by which non- reciprocal components such as gyrators and isolators could be incorporated in planar transmission line circuits.
What is a co-planar track?
Co-planar (also called Coplanar waveguide) track is a type of electrical planar transmission line which can be fabricated using printed circuit board technology, and is used to convey microwave-frequency signals.
Why are the three conductors of a circuit line coplanar?
All three conductors are on the same side of the substrate, and hence are coplanar. The return conductors are separated from the central track by a small gap, which has an unvarying width along the length of the line.