TY - GEN A1 - Liero, Armin A1 - Dewitz, Mike A1 - Kühn, Silvio A1 - Chaturvedi, Nidhi A1 - Xu, Jijun A1 - Rudolph, Matthias T1 - On the Recovery Time of Highly Robust Low-Noise Amplifiers T2 - IEEE transactions on microwave theory and techniques KW - Amplifier noise KW - integrated circuit noise KW - microwave field-effect transistor (FET) amplifiers KW - monolithic microwave integrated circuit (MMIC) amplifiers KW - noise KW - semiconductor device noise KW - integrated circuit (MMIC) amplifiers Y1 - 2010 U6 - https://doi.org/10.1109/TMTT.2010.2041519 SN - 0018-9480 VL - 58 IS - 4 SP - 781 EP - 787 ER - TY - CHAP A1 - Rudolph, Matthias A1 - Andrei, Cristina A1 - Liero, Armin A1 - Lossy, Richard A1 - Heinrich, Wolfgang T1 - Highly Linear Broadband GaN-based Low-noise Amplifier Y1 - 2010 ER - TY - JOUR A1 - Rudolph, Matthias A1 - Khalil, I. A1 - Liero, Armin A1 - Lossy, Richard A1 - Heinrich, Wolfgang T1 - GaN HEMT Potential for Low Noise Highly Linear RF Applications Y1 - 2008 ER - TY - GEN A1 - Rudolph, Matthias A1 - Dewitz, Mike A1 - Liero, Armin A1 - Khalil, I. A1 - Chaturvedi, Nidhi A1 - Wipf, Christian A1 - Bertenburg, R. M. A1 - Miller, J. A1 - Würfl, Joachim A1 - Heinrich, Wolfgang A1 - Tränkle, Günther T1 - Highly Robust X-Band LNA with Extremely Short Recovery Time Y1 - 2009 ER - TY - GEN A1 - Bopp, Julian M. A1 - Conradi, Hauke A1 - Perona, Felipe A1 - Palaci, Anil A1 - Wollenberg, Jonas A1 - Flisgen, Thomas A1 - Liero, Armin A1 - Christopher, Heike A1 - Keil, Norbert T1 - Diamond-on-chip magnetic field camera for mobile imaging T2 - Physical Review Applied N2 - Integrated and fiber-packaged magnetic field sensors with a sensitivity sufficient to sense electric pulses propagating along nerves and a spatial resolution fine enough to resolve their propagation directions will trigger tremendous steps ahead in medical diagnostics and research. Nitrogen-vacancy centers in diamond are best suitable for such sensing tasks under ambient conditions. Current research on uniting a good sensitivity and high spatial resolution is facilitated by scanning or imaging techniques. However, these techniques employ moving parts or bulky microscopes. Both approaches cannot be miniaturized to build robust, adjustment-free, hand-held devices. In this work, we introduce concepts for spatially resolved magnetic field sensing and two-dimensional gradiometry with an integrated magnetic field camera. The camera utilizes infrared absorption optically detected magnetic resonance (IRA ODMR) mediated by perpendicularly intersecting infrared and pump laser beams forming a pixel matrix. We demonstrate our scalable 3 ×3 pixel sensor’s capability to reconstruct the position of an electromagnet. In a reference measurement, we show an IRA ODMR sensitivity of 44 nT Hz−1/2. Y1 - 2025 U6 - https://doi.org/10.1103/PhysRevApplied.23.034024 VL - 23 SP - 1 EP - 11 ER -