What is coplanar waveguide in antenna?
Coplanar waveguide 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. On a smaller scale, coplanar waveguide transmission lines are also built into monolithic microwave integrated circuits.
How does a coplanar waveguide work?
In coplanar waveguide, EM energy is concentrated within the dielectric . The leakage of the Electromagnetic energy in the air can be controlled by having substrate height (h) twice that of the width (S). The coplanar waveguide supports quasi TEM mode at low frequencies while it supports TE mode at high frequencies.
What is the difference between CST and HFSS?
HFSS is based on Finite Element Method (FEM) which is more accurate for designing antennas while CST is based upon Finite Integration in Technique (FIT) and is also popular among antenna designers due to ease in simulations. So, you can go for anyone, but for microwave tubes, use CST simulation tool.
How do you CPW feed CST?
CPW feed and antenna are on the same plane. in CST, Go to Macros, then calculate then go to calculate analytical line impedance, select coplanar wave guide , enter material dielectric constant, height, U will get suitable width of CPW feed.
What is Ansoft HFSS?
Ansys HFSS is a 3D electromagnetic (EM) simulation software for designing and simulating high-frequency electronic products such as antennas, antenna arrays, RF or microwave components, high-speed interconnects, filters, connectors, IC packages and printed circuit boards.
What is discrete port in CST?
Discrete ports are mainly used to simulate lumped element sources inside the calculation domain. These ports are a good approximation for the source in the feeding point of antennas when calculating farfields. In some cases, these ports may also be used to terminate coaxial cables or microstrip lines.
What are the advantages and disadvantages of microstrip line?
Advantages of microstrip antenna:
- Low fabrication cost, hence can be manufactured in large quantities.
- Capable of dual and triple frequency operations.
- Easily integrated with microwave integrated circuit.
- This antenna has a smaller size and hence will provide small size and devices.
- Low cost.
- High performance.
What is the difference between HFSS and Maxwell?
Maxwell is more for electro-mechanical devices such as relays, motors. HFSS is more for electronic devices such as waveguides, striplines.
What is classified as HFSS?
What exactly is HFSS? HFSS refers to food and drink products that are high in (saturated) fat, salt or sugar according to the Department of Health’s Nutrient Profiling Model (NPM). Foods that score four or more, and drinks one or more, are classed as HFSS.
What is the difference between waveguide port and discrete port?
A discrete port has properties of its own (i.e. inductance as mentioned before) which can sometimes interfere with the simulation. Waveguide ports don’t normally do this except in rare cases of specifying the wrong boundary conditions.