1. What are mode concept in rectangular and circular waveguide and it’s calculation method and formulas

2. Dominant modes and it’s working principal

3. Wave propagation theory can formulas in waveguide with and without dielectric

4. Power handling calculation in waveguide

5. Some passible components based on waveguide like circulator, power combiners…. ]]>

Thank you

]]>It all depends on what kind of feed you are designing, series feed network, corporate network or hybrid network. Power calculation is power division, impedance matching, losses in feed network, amplitude and phase distribution, and power theorem.

I would suggest below two article on this topic

1. https://anilkrpandey.wordpress.com/2016/11/29/how-to-design-array-antenna-feed-networks/

2. https://anilkrpandey.wordpress.com/2017/02/26/square-coaxial-network/

-Anil

How can we calculate power transferred through feed structures in antenna arrays. How phase shifters are designed in hfss? ]]>