A Tunable 240–290 GHz Waveguide Enclosed 2-D Grid HBV Frequency Tripler

Dahlbäck, Robin; Vukušić, Josip; Weikle, Robert M.; Stake, Jan

doi:10.1109/tthz.2016.2545519

Cited by 16 publications

(7 citation statements)

References 26 publications

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“…12) and can be made extremely compact in practice [65]. By spatially power combining 72 HBV diodes in a closed waveguide, Dahlbäck et al demonstrated the first tripler operating close to submillimeter-wave frequencies [23]. Large multidiode arrays can be analyzed and simplified via a unit-cell approach.…”

Section: B Alternative Hbv Circuitsmentioning

confidence: 99%

“…In particular, the group at IEMN in Lille demonstrated the first HBV tripler with a conversion efficiency above 10% at 250 GHz [19]. Since 2000, the main achievements have involved integrated HBV circuits, with highpower triplers [20], quintuplers [21], and novel multiplier topologies being developed based on nonlinear transmission lines [22] and large HBV grids [23]. In this review paper, we present a historical overview, the basic concepts, and the current status of HBV multipliers for THz applications.…”

Section: Introductionmentioning

confidence: 99%

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Status and Prospects of High-Power Heterostructure Barrier Varactor Frequency Multipliers

2017

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| There is a high demand for compact, roomtemperature sources operating at millimeter-wave and terahertz (THz) frequencies for space instruments and terrestrial applications. This part of the electromagnetic spectrum is by far the least explored because of the difficulty of generating energy at these frequencies. Continuous-wave oscillators based on either electronics or photonics are limited in output power for fundamental reasons. Varistor and varactor frequency multipliers have shown outstanding performance in terms of output power, but further technical development will be essential to solve the lack of efficient and compact terahertz sources. In this paper, we present the status of heterostructure barrier varactor (HBV) diode frequency multipliers. The performance and prospects for THz applications in which HBV diode technology can offer advantages over conventional solutions are discussed. For instance, such a device can be easily scaled by increasing the number of barriers to produce and handle higher power. The inherent symmetry confines the power generation to odd harmonics, thereby simplifying the design of high-order frequency multipliers. For example, highpower triplers ( × 3 ), quintuplers ( × 5 ), nonlinear transmission lines (NLTLs) and grid multipliers utilizing HBV diodes are presented. Overall, HBV technology is a natural stepping stone from high-power microwave amplifiers to higher frequencies and can both simplify and improve the performance of terahertz sources.

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Section: B Alternative Hbv Circuitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Status and Prospects of High-Power Heterostructure Barrier Varactor Frequency Multipliers

2017

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“…The paralleled unit cell modeling approach outlined in [5] was used in the design of a 1-W input power multiplier module. The varactor grid consists of 128 square unit cells organized into 8 rows and 16 columns, with the columns aligned with the E-field of the waveguide.…”

Section: Designmentioning

confidence: 99%

“…A good summary and discussion of grid multiplier design can be found in [2] and the quasi-optical equivalent in [3]. Other successful grid frequency multiplier demonstrators include an HBV grid with 684 mW of output power at 93 GHz [4] and 35 mW at 247 GHz [5].…”

Section: Introductionmentioning

confidence: 99%

A Compact 128-Element Schottky Diode Grid Frequency Doubler Generating 0.25 W of Output Power at 183 GHz

Dahlbäck

Drakinskiy

Vukušić

et al. 2017

IEEE Microw. Wireless Compon. Lett.

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Citation for the published paper: Dahlbäck, R. ; Drakinskiy, V. ; Vukusic, J. et al. (2017) "A compact 128-element Schottky diode grid frequency doubler generating 0.25 W of output power at 183 GHz". IEEE Microwave and Wireless Components Letters, vol. 27(2), http://dx.Abstract-This paper presents a compact varactor grid frequency doubler encapsulated in a waveguide environment, thus providing single mode (H 10 ) waveguide connection at both input and output. Schottky diodes are used as varactors in this 128-element grid frequency doubler. By packaging the grid and its embedding network together with a stepped waveguide taper on the output, a module measuring 9 mm × 19 mm by 19 mm is created. A peak output power of 0.25 W is produced at 183 GHz with 1.32 W of input power and a corresponding conversion efficiency of 19%. The peak conversion efficiency is 23% at 183 GHz with 666 mW of input power.

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“…Several techniques have been presented to prevent different resonances in the substrates [4] by enabling higher order mode excitation, diode yield, and instabilities to be accounted for. We verified our model by means of a 72 dipole coupled HBV frequency tripler array, which was designed using the unit cell method [6].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Full 3D and Unit Cell Models for Waveguide-Embedded Frequency Multiplier Arrays

Hrubo

Dahlbäck

Stake

2016

IEEE Microw. Wireless Compon. Lett.

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A Tunable 240–290 GHz Waveguide Enclosed 2-D Grid HBV Frequency Tripler

Cited by 16 publications

References 26 publications

Status and Prospects of High-Power Heterostructure Barrier Varactor Frequency Multipliers

Status and Prospects of High-Power Heterostructure Barrier Varactor Frequency Multipliers

A Compact 128-Element Schottky Diode Grid Frequency Doubler Generating 0.25 W of Output Power at 183 GHz

Comparison of Full 3D and Unit Cell Models for Waveguide-Embedded Frequency Multiplier Arrays

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