Title :
Near-Field Direct Antenna Modulation (NFDAM) transmitter at 2.4GHz
Author :
Chang, Arthur H. ; Babakhani, Aydin ; Hajimiri, Ali
Author_Institution :
California Inst. of Technol., Pasadena, CA, USA
Abstract :
A near-field direct antenna modulation (NFDAM) transmitter at 2.4GHz is demonstrated on a microstrip setting. The transmitter is capable of transmitting information in a direction-dependent fashion by sending the correct signal constellation only in the desired direction while leaving the signal constellation points scrambled in undesired directions. This direction-dependent constellation scrambling nature of the NFDAM systems prevents undesired receivers to correctly demodulate the signal transmitted to a desired receiver at a specific direction.
Keywords :
UHF antennas; microstrip antennas; correct signal constellation; direction-dependent constellation scrambling nature; direction-dependent fashion; frequency 2.4 GHz; microstrip setting; near-field direct antenna modulation transmitter; receivers; Antenna measurements; Constellation diagram; Dielectric measurements; Dipole antennas; Directive antennas; Radio transmitters; Receiving antennas; Reflector antennas; Switches; Transmitting antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
978-1-4244-3647-7
DOI :
10.1109/APS.2009.5171550
