About

Rectangular Waveguides...  
In the information part, the rectangular waveguides are explained in detail. TM and TE modes are investigated separately (but in parallel) and the formulas for cutoff wavenumber (k_{c}), propagation constant (b ), cutoff wavelength (l _{c}), guide wavelength (l _{g}), phase velocity (u_{p}), attenuation constant due to dielectric loss (a _{d}) and wave impedance (Z) are derived for both modes. So, given the dimensions of the rectangular waveguide (a,b), the properties of the filling material (m ,e ), the operating frequency (f) and the mode of the rectangular waveguide (TM_{mn} or TE_{mn}), we can calculate any of the outputs mentioned above. In the design and analysis part, the program calculates all the outputs given the inputs. The user enters the dimensions of the rectangular waveguide (a,b), the properties of the filling material (m ,e ), the operating frequency (f) and the mode of the rectangular waveguide (TM_{mn} or TE_{mn}) and the program calculates the cutoff wavenumber (k_{c}), the propagation constant (b ), the cutoff wavelength (l _{c}), the guide wavelength (l _{g}), the phase velocity (u_{p}), the attenuation constant due to dielectric loss (a _{d}) and the wave impedance (Z). one can also see the graph of cutoff frequency versus the dimensions of the waveguide. Furthermore, the user can design a rectangular waveguide using the program. If the user enters the properties of the medium and the frequency, with which he/she wants his/her rectangular waveguide to travel, the program designs a rectangular waveguide with the dimensions so that the given frequency is inserted in the middle of TE_{10} and TE_{20} modes. For the design, we always take a as being equal to 2b. in this case, the lowest two cutoff frequencies are for TE_{10} and TE_{20} modes. From the formulas of the information part, we get and Using a=2b and f={(f_{CTE})_{10}+(f_{CTE})_{20}} / 2; the program calculates a and b. In other words, it designs a rectangular waveguide for the given material properties and operating with the given frequency. If you encounter
any problems, you can send us email: 

Please contact our Webmaster with questions or comments. Webmaster: M. Irsadi Aksun 