• Análisis Preliminar del Strip-slot Complementario en Tecnología Stripline 

      Hernández Escobar, Alberto; Abdo-Sánchez, Elena; Camacho-Peñalosa, Carlos (2017-09-20)
      A stripline-fed slot antenna configuration is proposed using planar technology. Its main advantages are the broad impedance bandwidth available and the radiation in only one half-space, which are obtained with the use of ...
    • Arrays planares basados en el elemento strip-slot complementario 

      Abdo-Sánchez, Elena; Martin-Guerrero, Teresa Maria; Page de la Vega, Juan Enrique; Esteban Marzo, Jaime; Camacho-Peñalosa, Carlos (2013-09-13)
      Recently, the authors introduced a novel planar radiating element that exploits the characteristics of the slotline microstrip coupling to obtain a microstrip-fed slot with broadband matching. This paper reviews the main ...
    • A Broadband Bow-Tie Cavity-Backed Slot for Traveling-Wave Arrays in the Millimeter-Wave Band 

      Hernàndez-Escobar, Alberto; Abdo-Sánchez, Elena; Camacho-Peñalosa, Carlos (2019-05-07)
      The use of bow-tie geometries to enhance the characteristics of a radiating element previously proposed by the authors is presented. The previous element consisted of a broadband cavity-backed slot in transmission ...
    • Caracterización de modelos no-lineales casi-estáticos a partir de las formas de onda en régimen de gran señal 

      Pérez Parras, Sergio; Martin-Guerrero, Teresa Maria; Baños-Polglase, Juana Daphne; Camacho-Peñalosa, Carlos (2018-09-07)
      A method to extract the conduction and displacement components of nonlinear quasi-static current sources controlled by two variables is concisely described. The method is numerically tested by means of two different ...
    • Caracterización no-lineal de dispositivos de un puerto basada en el principio de distorsión poli-armónica 

      Martin-Guerrero, Teresa Maria; Entrambasaguas-Muñoz, José Tomás; Camacho-Peñalosa, Carlos (2017-09-13)
      In this contribution the computation of a nonlinear diode model based on the Poly-Harmonic Distortion principle is described. The diode is composed of a non-linear conductance shunt connected to a non-linear capacitance, ...
    • Circuito equivalente del strip-slot complementario como red asimétrica con pérdidas 

      Esteban, Jaime; Abdo-Sánchez, Elena; Martin-Guerrero, Teresa Maria; Camacho-Peñalosa, Carlos (2017-09-26)
      The complementary strip-slot can be successfully modeled by means of a lattice equivalent circuit, with realizable immittances. In the case of the misaligned complementary stripslot, useful in series fed arrays, the lattice ...
    • Consideraciones sobre el amplificador distribuido como amplificador de potencia 

      Ng-Molina, Francisco Yak; Martin-Guerrero, Teresa Maria; Camacho-Peñalosa, Carlos (2013-09-12)
      In this contribution, a short review of independent research activities on distributed power amplification is presented. An analysis of the intrinsic limitations of distributed power amplifiers serves as a guideline to ...
    • DC-18 GHz MMIC tapered distributed power amplifier 

      Ng Molina, Francisco Yak; Pérez Parras, Sergio; Camacho-Peñalosa, Carlos; Martin-Guerrero, Teresa Maria (2014-07-22)
      A DC-18 GHz MMIC tapered power distributed amplifier has been designed and simulated in GaAs technology. The amplifier has been designed according to the theory for power and efficiency maximization based on tapered drain ...
    • Design and fabrication of a Fabry-Pérot cavity antenna for the Ku-band 

      Mateos-Ruíz, Pablo; Hernández-Escobar, Alberto; Abdo-Sánchez, Elena; Camacho-Peñalosa, Carlos (2020-09-18)
      A design of a directive antenna based on a Fabry-Pérot cavity is described, using a single metallic partially reflecting surface (PRS) in front of a coaxial-fed patch antenna. The main features of this type of antennas are ...
    • Design Aspects of a Broadband Beam-Reconfigurable Leaky-Wave Antenna 

      Abdo-Sánchez, Elena; Palacios, D.; Frías, C.; Ng-Molina, Francisco Yak; Martin-Guerrero, Teresa Maria; [et al.] (IEEE Antennas and Propagation Society, 2016)
      Design aspects of a novel beam-reconfigurable pla-nar series-fed array are addressed to achieve beam steering with frequency tunability over a relatively broad bandwidth. The design is possible thanks to the use of the ...
    • Disipación de potencia en redes en celosía: la radiación del strip-slot complementario 

      Abdo-Sánchez, Elena; Martin-Guerrero, Teresa Maria; Esteban Marzo, Jaime; Camacho-Peñalosa, Carlos (2015-09-21)
      A circuit property of symmetrical lattice networks is derived and applied to the analysis of symmetrical twoport electromagnetic structures. This property is related to the independence of the power dissipation in the ...
    • Distributed Amplifiers in MMIC Technology based on Composite Right/Left-Handed Transmision Lines 

      Martin-Guerrero, Teresa Maria; Palombini, Diego; Mata-Contreras, Francisco Javier; Bentini, Andrea; Ng-Molina, Francisco Yak; [et al.] (2013-11-13)
      Abstract – Three MMIC distributed amplifiers based on Composite Right/Left-Handed Transmission Lines are presented in order to illustrate the actual performance of these devices, and the features that can be obtained with ...
    • Dual Beam Sinusoidally Modulated Reactance Surface Antenna 

      Abdo-Sánchez, Elena; Pérez Aguilar, Lorena; Martin-Guerrero, Teresa Maria; Camacho-Peñalosa, Carlos (2020-09)
      In this work, a planar dual beam Sinusoidally Modulated Reactance Surface (SMRS) antenna is presented. Our method is based on the implementation of a surface impedance modulated by the superposition of two sinusoidal ...
    • Elemento radiante de banda ancha en microstrip cerrada para arrays alimentados en serie 

      Hernández Escolar, Alberto; Abdo-Sánchez, Elena; Camacho-Peñalosa, Carlos (2018-09-07)
      A previous radiating element in transmission configuration proposed by the authors is alternatively implemented using enclosed microstrip configuration. The new implementation overcomes fabrication issues and improves its ...
    • Equivalent Circuit Modelling of Non-Symmetric Reciprocal Lossy Electromagnetic Structures 

      Abdo-Sánchez, Elena; Martin-Guerrero, Teresa Maria; Esteban, Jaime; Camacho-Peñalosa, Carlos (2018-06-04)
      Lattice-network-based equivalent circuits of lossy symmetric reciprocal electromagnetic structures have shown superior performance when compared to other topologies like the T- or PI- networks. This is due to the realizability ...
    • Extracción de modelos casi-estáticos para dispositivos no-lineales a partir de medidas en el dominio de la frecuencia 

      Pérez Parras, Sergio; Martin-Guerrero, Teresa Maria; Baños Polglase, Juana Daphne; Camacho-Peñalosa, Carlos (2019-09-11)
      In this contribution an extraction method already proposed by authors and suitable for FET-type devices that could be represented by a quasi-static model is illustrated. For the first time, the method is applied to a FET ...
    • Measuring odd- and even-mode propagation constants of coupled-lines by means of the lattice network 

      Hernández-Escobar, Alberto; Abdo-Sánchez, Elena; Esteban, Jaime; Martin-Guerrero, Teresa Maria; Camacho-Peñalosa, Carlos (2019-10-30)
      A classic method for measuring the propagation constant of transmission lines is the one proposed by Bianco and Parodi more than four decades ago [1]. It is based on the invariance of the cross ratio of four complex numbers ...
    • Modelling asymmetric two-port reciprocal microwave structures by means of compact equivalent circuits 

      Abdo-Sánchez, Elena; Martin-Guerrero, Teresa Maria; Esteban, Jaime; Camacho-Peñalosa, Carlos (2019)
      Effective microwave systems design requires powerful and reliable modeling techniques. Today modern CAD tools provide such support from device physics to circuit level or from electromagnetics to system level. Nevertheless, ...
    • Modelo no-lineal de diodo mediante el operador NFS y su implementación en herramienta CAD 

      García Luque, Aarón; Martin-Guerrero, Teresa Maria; Santarelli, Alberto; Camacho-Peñalosa, Carlos (2020-09-21)
      The characterization of active devices is a key point when developing system-level design techniques. To this aim, an automatic quasi-static (QS) nonlinear model extraction technique for solid state devices by using the ...
    • Novel Implementation for a Cavity-Backed Slot Fed in Transmission Configuration 

      Camacho-Peñalosa, Carlos; Hernández Escobar, Alberto; Abdo-Sánchez, Elena (2018-04-23)
      A novel radiating element proposed previously by the authors is alternatively implemented using enclosed microstrip configuration. The radiating element shows broad impedance bandwidth and unidirectional radiation pattern. ...