Low-loss on-chip resonators enabling high-performance amplifiers and oscillators
Final Report Abstract
This project aimed to advance the state-of-art for on-chip spherical dielectric resonators for high-efficiency transmitters. Ultimately, this technology could reduce the cost of mm-wave systems, because the need for some expensive high-precision millimeter wave assemblies is being eliminated. It was shown that the spherical dielectric can be precisely positioned on-chip due to self-alignment in a cavity etched into the chip surface. Coupling structures to drive the sphere as antenna and as efficient resonator were successfully created. Two circuits were successfully designed and tested. A power amplifier circuit that can transmit a circularly polarized signal at around 100 GHz was shown as well as an oscillator circuit that uses the sphere as high-Q frequency defining element. The efficiency of the power amplifier improved the state of the art.
Publications
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A 21-dBm 3.7 W/mm² 28.7% PAE 64-GHz Power Amplifier in 22-nm FD-SOI. IEEE Solid-State Circuits Letters, 3, 386-389.
Cui, Mengqi; Carta, Corrado & Ellinger, Frank
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Self-Aligned on-Chip Spherical Dielectric Resonators and Antennas for SiGe MMIC. 2022 Asia-Pacific Microwave Conference (APMC), 686-688. IEEE.
Sterzl, Georg; Zhu, Yu; Hesselbarth, Jan; Carta, Corrado; Lisker, Marco & Ellinger, Frank
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Low Phase Noise 104 GHz Oscillator Using Self-Aligned On-Chip Voltage-Tunable Spherical Dielectric Resonator in 130-nm SiGe BiCMOS. 2024 IEEE 24th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems (SiRF), 83-86. IEEE.
Zhu, Yu; Sterzl, Georg; Hesselbarth, Jan; Meister, Tilo & Ellinger, Frank
