Title :
Flexible bow-tie antennas with reduced metallization
Author :
Durgun, Ahmet C. ; Reese, Mark S. ; Balanis, Constantine A. ; Birtcher, Craig R. ; Allee, David R. ; Venugopal, Sameer
Author_Institution :
Arizona State Univ., Tempe, AZ, USA
Abstract :
This paper presents design, simulation, fabrication and measurement of a modified bow-tie antenna with reduced metallization. The antenna is mounted on a flexible substrate which is fabricated at the Flexible Display Center (FDC) of Arizona State University (ASU). The substrate is heat stabilized polyethylene naphthalate (PEN) which allows the antenna to be flexible. The antenna is fed by the aid of a microstrip-to-coplanar feed network balun. The reduction of the metallization is based on the observation that the majority of the current density is confined towards the edges of the regular bow-tie antenna. Hence, the centers of the triangular parts of the bow-tie antenna are removed. The radiation performance of the modified bow-tie is verified to be very close to the conventional bow-tie by simulations and measurements.
Keywords :
antenna feeds; antenna radiation patterns; baluns; bow-tie antennas; ASU; Arizona State University; FDC; PEN; antenna fabrication; antenna feed; antenna measurement; current density; flexible bow-tie antennas; flexible display center; heat-stabilized polyethylene naphthalate; metallization reduction; microstrip-to-coplanar feed network balun; modified bow-tie antenna design; radiation performance; Antenna measurements; Broadband antennas; Dipole antennas; Loss measurement; Metallization; Solids; Bow-tie antenna; broadband antenna; flexible antenna; heat stabilized PEN; microstrip-to-coplanar feed network balun;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2011 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4244-7687-9
DOI :
10.1109/RWS.2011.5725422