Design and Measurement of a 0.67 THz Biased Sub-Harmonic Mixer

Ji, Guang-Fu; Zhang, Dehai; Jin, Meng; Liu, Siyu; Yao, Changfei

doi:10.3390/electronics9010161

Cited by 5 publications

(4 citation statements)

References 19 publications

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“…Mm-wave, sub-mm-wave, and even THz-components benefit from the outstanding precision available in glass technologies. Examples are the integration of Schottky diodes into split-block waveguides [118], [119], [120], [121]. Fig.…”

Section: B Resonators Filters and Phase Shiftersmentioning

confidence: 99%

RF Glass Technology Is Going Mainstream: Review and Future Applications

Chaloun¹,

Brandl²,

Ambrosius³

et al. 2023

IEEE J. Microw.

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Driven by the increasing demand for high-throughput communication links and high-resolution radar sensors, the development of future wireless systems pushes at ever greater operating frequencies. By analogy, high-performance computing (HPC) systems with high-bandwidth I/Os have become a mainstream solution to address multi Gbit/s data rates. Heterogeneous integration technologies play a vital role here in enhancing the performance and functional density, along with reducing the size and costs of such RF systems. In line with this trend, many passive components, which have once been monolithically integrated, are now implemented on ceramic or polymer-based packages. Besides these long-established material and process technologies, considerable efforts have also recently been devoted to the development of RF components on glass and glass-ceramics. Spurred by their low dielectric losses, extremely smooth surfaces, and excellent dimensional stability, glass technologies are emerging as a promising alternative for high-volume and high-performance RF applications. In this article, relevant glass materials and key enabling technologies are reviewed and put into context with well-established RF substrate technologies. Another focus is set on the latest glass-based packaging and interposer solutions ranging from MHz-to-THz frequencies. To showcase the development activities and practical accomplishments of the RF glass technology, also a large variety of key components is presented. Finally, the paper concludes by discussing future research and development directions of RF glass devices.INDEX TERMS MTT 70th Anniversary Special Issue, glass technology, dielectrics, packaging, interposer, system-on-package, interconnects, filters, antennas, antenna-in-package, millimeter wave (mm-wave).

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Section: B Resonators Filters and Phase Shiftersmentioning

confidence: 99%

RF Glass Technology Is Going Mainstream: Review and Future Applications

Chaloun¹,

Brandl²,

Ambrosius³

et al. 2023

IEEE J. Microw.

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“…The anode junction diameter of this diode is 1 um and the junction capacitance and series resistance are 9 fF and 7.5 ohms, respectively. In the active circuit of the mixers, the diode is simulated by a SPICE model, as Figure 3b shows [16]. The simulated result of the diode will be exported to the circuit in the ADS (advanced design system) for optimization.…”

Section: Mixer Design 21 Schottky Diodementioning

confidence: 99%

Development of 0.34 THz Sub-Harmonic Mixer Combining Two-Stage Reduced Matching Technology with an Improved Active Circuit Model

et al. 2022

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In this paper, a high-performance 0.34 THz sub-harmonic mixer combining two-stage reduced matching technology with an improved active circuit model is established and analyzed. The mixer’s improved active circuit model is realized by decomposing passive functional models into basic transmission line units and their impedance matching and filtering are realized through automatic optimization. The improved active circuit model takes out the RF (radio frequency) transition model separately to set an optimization goal instead of operating directly in the mixing circuit. Compared with traditional active circuit models in the SDM (subdivision design method) and GDM (global design method), it provides a massive optimization space, larger working bandwidth, and better results. In the RF frequency range of 320–360 GHz, the SSB (single sideband) conversion loss of the 0.34 THz sub-harmonic mixer is below 9.5 dB and the RF return loss is less than 12 dB.

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“…The design, study, and experimental demonstration of a biased sub-harmonic mixer working at a frequency of 0.67 THz is presented in Reference [16], demonstrating a conversion loss of 18.2 dB in the band between 0.650 THz and 0.690 THz. A synthetic aperture THz imaging technique based on the light field imaging system is proposed in Reference [17].…”

Section: In This Special Issuementioning

confidence: 99%