Small-Size X-Band Active Integrated Antenna With Feedback Loop

@article{citeulike:3015403, abstract = {A small-sized active integrated antenna (AIA), consisting of a transmission feedback oscillator loaded with a microstrip antenna is presented in this paper. The oscillator antenna, which consists of a NEC super low noise high frequency field effect transistor (HF FET) integrated into the center of a segmented patch antenna, was designed for X-band at 8.50 GHz, and occupies a 5 times 6 mm² area. The active integrated antenna demonstrates stable oscillations and excellent radiation patterns at X-band design frequencies. When biased using a single 1.5 volt battery connected between the source and drain and with the gate terminal open, the antenna effective isotropic radiated power (EIRP) and direct current (DC)-to-radiated radio frequency (RF) conversion efficiency are +11.2 dBm and 10.5\%, respectively. The radiated power level and directivity are +4.5 dBm and 6.7 dBi, respectively. The phase noise at 100 kHz offset from the carrier is -87.5 dBc/Hz, which is a notable improvement over existing AIA designs. The AIA features compact size and simple geometry, yet provides radiated power levels and radiation efficiencies that are comparable to values typically obtained using circuits that occupy larger areas, and use thicker substrates with much lower dielectric constant values.}, author = {Mueller, C. H. and Lee, R. Q. and Romanofsky, R. R. and Kory, C. L. and Lambert, K. M. and Van Keuls, F. W. and Miranda, F. A. }, booktitle = {Antennas and Propagation, IEEE Transactions on}, citeulike-article-id = {3015403}, doi = {10.1109/TAP.2008.922628}, journal = {Antennas and Propagation, IEEE Transactions on}, keywords = {active, antenna, small}, number = {5}, pages = {1236--1241}, posted-at = {2008-07-17 20:49:07}, priority = {2}, title = {Small-Size X-Band Active Integrated Antenna With Feedback Loop}, url = {http://dx.doi.org/10.1109/TAP.2008.922628}, volume = {56}, year = {2008} }

TY - JOUR ID - citeulike:3015403 L3 - citeulike-article-id:3015403 TI - Small-Size X-Band Active Integrated Antenna With Feedback Loop T2 - Antennas and Propagation, IEEE Transactions on JF - Antennas and Propagation, IEEE Transactions on VL - 56 IS - 5 SP - 1236 EP - 1241 N2 - A small-sized active integrated antenna (AIA), consisting of a transmission feedback oscillator loaded with a microstrip antenna is presented in this paper. The oscillator antenna, which consists of a NEC super low noise high frequency field effect transistor (HF FET) integrated into the center of a segmented patch antenna, was designed for X-band at 8.50 GHz, and occupies a 5 times 6 mm² area. The active integrated antenna demonstrates stable oscillations and excellent radiation patterns at X-band design frequencies. When biased using a single 1.5 volt battery connected between the source and drain and with the gate terminal open, the antenna effective isotropic radiated power (EIRP) and direct current (DC)-to-radiated radio frequency (RF) conversion efficiency are +11.2 dBm and 10.5%, respectively. The radiated power level and directivity are +4.5 dBm and 6.7 dBi, respectively. The phase noise at 100 kHz offset from the carrier is -87.5 dBc/Hz, which is a notable improvement over existing AIA designs. The AIA features compact size and simple geometry, yet provides radiated power levels and radiation efficiencies that are comparable to values typically obtained using circuits that occupy larger areas, and use thicker substrates with much lower dielectric constant values. KW - active KW - antenna KW - small AU - Mueller, CH AU - Lee, RQ AU - Romanofsky, RR AU - Kory, CL AU - Lambert, KM AU - Van Keuls, FW AU - Miranda, FA PY - 2008/// UR - http://dx.doi.org/10.1109/TAP.2008.922628 ER -