Pérez Escudero, José Manuel
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Pérez Escudero
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José Manuel
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Ingeniería Eléctrica, Electrónica y de Comunicación
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Publication Open Access A millimeter-wave 4th-harmonic Schottky diode mixer with integrated local oscillator(MDPI, 2021) Pérez Escudero, José Manuel; Quemada Mayoral, Carlos; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren; Institute of Smart Cities - ISC; Ingeniería Eléctrica, Electrónica y de ComunicaciónIn this paper the design and experimental validation of a fourth-harmonic mixer based on Schottky diodes working around 300 GHz is presented. The main novelty of this work consists in the integration of an MMIC-based local oscillator, working around 75 GHz, and a mixer in the same metallic block housing. A prototype has been characterized using the Y-Factor method and yields a best measured conversion loss and an equivalent noise temperature of 14 dB and 9600 K, respectively. This performance is comparable to the state-of-the-art for this type of mixer.Publication Open Access Design of 300 ghz combined doubler/subharmonic mixer based on schottky diodes with integrated mmic based local oscillator(MDPI, 2020) Pérez Escudero, José Manuel; Quemada Mayoral, Carlos; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren; Institute of Smart Cities - ISC; Ingeniería Eléctrica, Electrónica y de ComunicaciónIn this paper the design and experimental characterization of a combined doublersubharmonic mixer based on Schottky diodes which uses a 75 GHz MMIC based local oscillator is presented. This solution integrates in the same substrate the doubler and the mixer, which share the same metallic packaging with the local oscillator. The prototype has been fabricated and measured. For characterization, the Y-Factor technique has been used and the prototype yields a best conversion loss and equivalent noise temperature of 11 dB and 1976 K, respectively, at 305 GHz. This performance is close to the state of the art, and shows the potential of this approach, which allows a significant reduction in terms of size and volume.Publication Open Access High-performance terahertz optoelectronic receivers enabled by monolithic integration of SBDs and UTC-PDs: modelling and design(IEEE, 2023-10-31) Belío Apaolaza, Íñigo; Seddon, James; Pérez Escudero, José Manuel; Ederra Urzainqui, Íñigo; Renaud, Cyril C.; Institute of Smart Cities - ISCIn this work, we propose the monolithic integration of Schottky barrier diodes (SBDs) and uni-traveling-carrier photodiodes (UTC-PDs) to implement optoelectronic terahertz heterodyne receivers. By performing efficient frequency-mixing with SBDs and generating the local oscillator (LO) signal by optical means in UTC-PDs the virtues of both electronic and photonic domains are incorporated into the same receiver. A complete modelling process including semiconductor, electromagnetic, and non-linear harmonic domains is used to design a subharmonic mixer (SHM) at 220-330 GHz using antiparallel SBDs within the UTC-PD epitaxial structure. This is done in co-planar waveguide (CPW) on a silicon oxynitride film and semi-insulating indium phosphide substrate. Simulations show remarkable performance featuring a dual-side-band (DSB) conversion loss as low as 8.2 dB, a noise temperature of 2500 K, and an intermediate-frequency (IF) 3dB-bandwidth of 25 GHz, which is achieved with a driving photocurrent of 5-15 mA.Publication Open Access Comparison of fourth-harmonic and combined doubler/subharmonic mixer with integrated MMIC based local oscillator(IEEE, 2019) Pérez Escudero, José Manuel; Quemada Mayoral, Carlos; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Institute of Smart Cities - ISCIn this paper a comparison between a fourth harmonic mixer and a combined doubler/subharmonic mixer based on Schottky diodes working at 300 GHz with MMIC Local Oscillator (LO) integrated in a single enclosing is presented. Both configurations allow reducing the LO requirements, since a lower LO frequency is used. In addition, the integration of the MMIC Local Oscillator with the mixer in the same single metallic block is the main novelty and advantage of this work. Since only one block is used, flange connections are avoided. This way, misalignment errors are also prevented. Besides this advantage, the compactness of this solution is also remarkable, leading to a significant weight reduction.