Title :
Design of a TEM waveguide for ultra-wideband applications
Author :
Hsueh-Yuan Pao ; Poggio, A.J.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
Abstract :
Green´s function and finite element methods were used to investigate the propagation characteristics of a conventional rectangular waveguide with an enclosed septum. Derivatives of this structure will ultimately be used to form laterally closed TEM horn antennas. Conditions were determined which would guarantee single mode TEM operation. A waveguide impedance for this mode of operation, which is frequency independent and possesses the characteristics of the conventional transmission line impedance, was defined and computed for a range of variables. Such devices will find applications in ultra-wideband systems.
Keywords :
Green´s function methods; electric impedance; finite element analysis; horn antennas; rectangular waveguides; waveguide theory; Green´s function methods; enclosed septum; finite element methods; laterally closed TEM horn antennas; propagation characteristics; rectangular waveguide; single mode TEM operation; ultra-wideband applications; waveguide impedance; Bandwidth; Broadband antennas; Electromagnetic waveguides; Horn antennas; Laboratories; Receiving antennas; Rectangular waveguides; Transmitting antennas; Ultra wideband antennas; Ultra wideband technology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.788245
