About eigensteve Expertise I can answer undergraduate level fluid mechanics questions.
Experience My research involves modeling the unsteady fluid dynamics characterized by laminar vortex shedding on small wings.
Organizations SIAM
AIP
APS
AIAA
IEEE
Publications AIAA Aerospace Sciences Meeting and Exhibit [2008, 2009].
IEEE Photovoltaic Specialist [2009].
For these publications, see http://carlsbad.princeton.edu/~steve/papers/
Education/Credentials I earned my B.S. in Mathematics from Caltech in 2006. I am currently a PhD. Candidate in Mechanical and Aerospace Engineering at Princeton. I expect to graduate in 2011.
Awards and Honors Athena-Feron Scholarship Award for Excellence in Mathematical Coursework [2007],
Princeton MAE Second Year Fellowship for Research Excellence [2007],
Gordon Wu Fellowship [2006-2010],
Caltech Summer Undergraduate Research Fellowship [2003-2005].
Question What function does an antenna fulfill? what does the principal of reciprocity say about the properties of the antenna?
Answer Hi Imran,
An antenna receives or transmits electromagnetic signals. If it is receiving, it converts electromagnetic radiation into an electrical signal. The same antenna may also convert an electrical signal into an electromagnetic wave. This is the principle of reciprocity.
Hope this helps,
Steve
ps. I don't know the full answer to this, but I googled "radio antenna" and "antenna reciprocity". Please try to do some research on your own. It is fun!
