FinFET-based high-frequency quadrature oscillator design and its TRNG applications
AEU - International Journal of Electronics and Communications, cilt.216, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 216
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.aeue.2026.156493
- Dergi Adı: AEU - International Journal of Electronics and Communications
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Compendex, INSPEC, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO), Technology Collection (ProQuest)
- Anahtar Kelimeler: Fin field effect transistor (FinFET), Quadrature sinusoidal oscillator (QSO), True random number generator (TRNG), Voltage differencing transconductance amplifier (VDTA)
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
This paper presents a FinFET-based realization of a voltage differencing transconductance amplifier (VDTA) quadrature oscillator for high-frequency and low-power operation. The presented oscillator is realized using a single FinFET-based VDTA and two grounded capacitors. It effectively combines the electronically tunable transconductance property of the VDTA with the improved electrostatic control and scalability advantages of FinFET technology. As a result, a compact and simple oscillator structure with a low component count is achieved, enabling reliable operation at high frequencies with reduced power consumption. Simulation results show that the presented FinFET-based VDTA oscillator achieves an oscillation frequency of approximately 18.27 GHz with a power consumption of about 400 μW, indicating its suitability for high-frequency and low-power applications. The generated quadrature outputs exhibit the same oscillation frequency with an approximately 90° phase difference, making the structure suitable for communication-oriented applications. In addition, the oscillator is evaluated as a potential entropy source for oscillator-based true random number generator (TRNG) architectures, where phase noise and jitter-related timing uncertainties can be exploited for random bit generation. The obtained results demonstrate the capability of the presented FinFET-based VDTA quadrature oscillator to provide high-frequency and low-power quadrature signal generation, while also highlighting its potential as an entropy-source candidate for TRNG-oriented lightweight security applications.