reconfigurable antenna design
Optically pumped frequency reconfigurable antenna design FREE-DOWNLOAD [PDF] Y Tawk, AR Albrecht, S Hemmady… – … Letters, research, 2010 Abstract—This letter presents a novel frequency reconfigurable antenna design using photoconductive silicon elements as optical switches. By illuminating these silicon elements with light of suitable wavelength, their physical properties can be altered from that of a semiconductor to
antenna based spectrum sensing
Multi-antenna based spectrum sensing for cognitive radios: A GLRT approach FREE-DOWNLOAD [PDF] R Zhang, T Lim, YC Liang… – Communications, research …, 2010 Abstract—In this letter, we propose multi-antenna based spec- trum sensing methods for cognitive radios (CRs) using the generalized likelihood ratio test (GLRT) paradigm. The proposed methods utilize the eigenvalues of the sample covariance matrix […]
Multiband handset antenna
Multiband handset antenna with a parallel excitation of PIFA and slot radiators FREE-DOWNLOAD [PDF] J Anguera, I Sanz, J Mumbru… – … and Propagation, research …, 2010 Abstract—A handset antenna technique combining a parallel ex- citation of a PIFA and a slot is presented. The number of frequency bands is given by the sum of bands given per each […]