Title :
Novel methods to analyze and fabricate electrically small antennas
Author :
Pfeiffer, Carl ; Grbic, Anthony ; Xu, Xin ; Forrest, Stephen R.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
A circuit model is introduced for electrically small antennas (ESAs) based on their frequency-dependent polarizabilities. This circuit model can be used to analyze the frequency response, radiation quality factor (Q), and radiation efficiency (ηeff) of ESAs. In addition, a new method of printing antennas onto arbitrarily contoured substrates is introduced. This fabrication method has the potential to greatly improve the accuracy and ease with which ESAs are fabricated. A spherical helix ESA is analyzed and fabricated.
Keywords :
frequency response; microstrip antennas; arbitrarily contoured substrates; circuit model; electrically small antennas; frequency dependent polarizabilities; frequency response; printing antennas; radiation efficiency; radiation quality factor; Antenna measurements; Helical antennas; Impedance; Integrated circuit modeling; Substrates; Surface impedance;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996824