Tunable 500 GHz transmitter array in SiGe technology for gas spectroscopy
| Autor: | R. Wang, K. Schmalz, Philipp Neumaier, J. Borngraber, Wojciech Debski, Heinz-Wilhelm Hübers |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Absorption spectroscopy SiGe business.industry Local oscillator Terahertz Transmitter Array Terahertz spectroscopy and technology Power (physics) Phase-locked loop Gas Electronic engineering Optoelectronics Golay Transmiter Golay cell Gas-Sensor Electrical and Electronic Engineering 500 GHz Spectroscopy business |
| Zdroj: | Electronics Letters. 51:257-259 |
| ISSN: | 1350-911X 0013-5194 |
| Popis: | A 500 GHz system for gas spectroscopy is presented, which includes an integrated SiGe 4x1 transmitter (TX)-array, a Golay cell, and a 1.9 m long gas absorption cell. The local oscillator (LO) of the TX-array is controlled by an external phase-locked loop (PLL), whose reference frequency is swept. The four TX-branches involve frequency quadruplers (x4). The TX-branches are fed by a 120 GHz power division network, which is connected to the LO. The estimated radiated output power of the TX array is 7 dBm at 500 GHz. The absorption spectrum of methanol is shown for 494 – 500 GHz. |
| Databáze: | OpenAIRE |
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