Modes Planar transmission line
1 modes 1.1 tem mode 1.2 quasi-tem modes 1.3 transverse modes 1.4 longitudinal-section modes modes an important parameter transmission lines mode of transmission employed. mode describes electromagnetic field patterns caused geometry of transmission structure. tem mode the mode found on ordinary conductive wires , cables transverse electromagnetic mode (tem mode). dominant mode on planar transmission lines. in tem mode field strength vectors electric , magnetic field both transverse direction of travel of wave , orthogonal each other. important property of tem mode can used @ low frequencies; way down 0 (dc). another feature of tem mode on ideal transmission line (one meets heaviside condition) there no change of line transmission parameters (characteristic impedance , signal group velocity) frequency of transmission. because of this, ideal tem transmission lines not suffer form of distortion called dispersion. dispersion different frequency components travel @ different velocities res...