Title :
Active antennas incorporating tunnel diodes-large signal model approach
Author :
Liu, Kai ; El-Ghazaly, Samir M. ; Deshpande, Mandar R. ; Nair, Vijay ; El-Zein, Nada ; Goronkin, Herb
Author_Institution :
Telecommun. Res. Center, Arizona State Univ., Tempe, AZ, USA
Abstract :
In this letter, a comprehensive dc and RF model of heterostructure interband tunnel diodes (HITDs) is extracted. Active antennas incorporating tunnel diodes are analyzed in the time domain using this tunnel diode model. The simulated and measured results are in good agreement in terms of oscillation frequencies of the active antennas. Phase noise of -114.67 dBc/Hz @1.0 MHz offset is achieved for injection-locked active antennas. The simulated injection locking range of a Ka band active antenna array is investigated.
Keywords :
active antenna arrays; millimetre wave antenna arrays; phase noise; time-domain analysis; tunnel diodes; Ka band; active antenna array; heterostructure interband tunnel diodes; injection locking range; injection-locked active antennas; large signal model approach; oscillation frequencies; phase noise; time domain; Antenna measurements; Circuit simulation; Finite difference methods; Injection-locked oscillators; RF signals; Radio frequency; Semiconductor diodes; Time domain analysis; Tunneling; Voltage;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.941780
