Title :
Circular Dipole Antenna for Mode 1 UWB Radio With Integrated Balun Utilizing a Flex-Rigid Structure
Author :
Karlsson, Magnus ; Gong, Shaofang
Author_Institution :
Linkoping Univ., Norrkoping, Sweden
Abstract :
A fully integrated dipole antenna with balun for ultrawideband (UWB) radio utilizing a flexible and rigid printed circuit board is presented in this paper. The concept in this paper is to take advantage of the respective possibilities of the rigid and flexible parts. The balun utilizes broadside-coupled microstrips and is integrated in the rigid part of the printed circuit board, whereas the radiator is placed in the flexible part. The antenna with the balun covers the mode 1 UWB frequency-band 3.1-4.8 GHz (with margin) at voltage standing wave ratio (VSWR) <. Furthermore, good radiation characteristics and a linear phase response are observed with measurements.
Keywords :
baluns; dipole antennas; microstrip antennas; printed circuits; ultra wideband antennas; ultra wideband communication; UWB radio; antenna radiation characteristics; broadside-coupled microstrips; circular dipole antenna; flex-rigid structure; frequency 3.1 GHz to 4.8 GHz; fully integrated dipole antenna; integrated balun; linear phase response; rigid printed circuit board; ultrawideband radio; voltage standing wave ratio; Antenna accessories; Antenna measurements; Dipole antennas; Flexible printed circuits; Frequency; Impedance matching; Microstrip components; Ultra wideband antennas; Ultra wideband technology; Voltage; Balun; broadside coupled; circular; dipole antenna; ultrawideband (UWB);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2009.2028626
