A highly linear single balanced mixer based on heterojunction interband tunneling diode
| Autor: | Vijay K. Nair, N. El-Zein, Alessandro Cidronali, M. Deshpande, Gianfranco Manes, Giovanni Collodi, Herbert Goronkin |
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| Rok vydání: | 2001 |
| Předmět: |
Radiation
Materials science business.industry Electrical engineering Linearity Condensed Matter Physics chemistry.chemical_compound chemistry Tunnel diode Optoelectronics Power dividers and directional couplers Electrical and Electronic Engineering business Electrical impedance Indium gallium arsenide Monolithic microwave integrated circuit Intermodulation Diode |
| Zdroj: | IEEE Transactions on Microwave Theory and Techniques. 49:2437-2445 |
| ISSN: | 0018-9480 |
| DOI: | 10.1109/22.971633 |
| Popis: | In this paper, a compact and highly linear monolithic-microwave integrated circuit (MMIC) single balanced mixer based on heterojunction interband tunnel diode (HITD) technology working at 1.8 GHz is described. The prototype consists of a pair of HITDs biased at 0 V and a lumped-element directional coupler with arbitrary impedance terminations. The HITDs are in the InGaAs/InAlAs material system lattice matched to InP. The relevant feature of the mixer is the linearity due to the quasi-square-law dc current-voltage (IV) characteristics exhibited by the device around zero voltage. A qualitative treatment of the third-order intermodulation product and the conversion loss as a function of the HITDs IV characteristic and the embedding impedance is provided. The design techniques along with a detailed experimental validation are also provided. The prototype working in down-conversion mode, exhibited an third-order intercept point power level of +17.5 dBm, a conversion loss of 11 dB and a 1-dB compression point of +7 dBm at the operative frequency of 1.8 GHz with a +5-dBm local-oscillator drive level. |
| Databáze: | OpenAIRE |
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