Quasi-optical SIS mixers with normal metal tuning structures [PDF]
, 1997 We recently reported (1996) a quasi-optical SIS mixer which used Nb/Al-oxide/Nb tunnel junctions and a normal-metal (Al) tuning circuit to achieve an uncorrected receiver noise temperature of 840 K (DSB) at 1042 GHz.
Bin, Mei +4 more
core +1 more source
Performance Comparison of Thin and Thick Film Microstrip Rejection Filters
Active and Passive Electronic Components, 1988 A performance comparison of microstripline circuits using thin and thick film techniques has been studied, in which a Microstrip rejection filter, in the X-band of microwaves, is used as test circuit.
M. M. Mandhare +3 more
doaj +1 more source
Híbrido rat-race miniaturizado para la banda ISM 2,4 GHZ
Tecnura, 2014 This paper presents the design, implementation and evaluation of a miniaturized Rat-race hybrid implemented in substrate CER-60 with microstrip transmission lines in a novel space-filling curve.
Sebastián Rodríguez Páez +2 more
doaj +1 more source
Efficient enhancements in spectral domain method to speed up open planar circuit analysis [PDF]
, 1998 The spectral domain method is a very fast and powerful technique to analyse planar microwave circuits. Available techniques for simulating the excitation of open planar microwave circuits are not very effective at relatively low frequencies.
Balik, HH, Railton, CJ
core +2 more sources
DEFECTED CONCRETE POST DETECTION THROUGH ANTENNA ARRAY COUPLING EFFECT [PDF]
Journal of Engineering Science and Technology, 2017 In this paper, a proposed defected concrete post detection system is introduced. The proposed system consists of two compact microstrip broad side antenna arrays resonating at 1 GHz with dimensions of 45 cm by 13.2 cm for each antenna array and a weight ...
TAMER G. ABOUELNAGA, KAMEL S. SULTAN
doaj
Filtenna with Frequency Reconfigurable Operation for Cognitive Radio and Wireless Applications
Micromachines, 2023 A reconfigurable wideband monopole antenna is introduced in this paper for cognitive radio and wireless applications. The reconfigurability was achieved by four varactor diodes embedded in the band pass filter (BPF) structure which was integrated with ...
Mahmoud A. Abdelghany +3 more
doaj +1 more source
A Frequency Reconfigurable Folded Antenna for Cognitive Radio Communication
Micromachines, 2023 In this work, a spectrum-sensing monopole antenna was used to operate in different frequency bands for cognitive radio applications. The proposed antenna consists of a folded monopole antenna with a partial ground plane, and it can be used for various ...
Ahmed A. Ibrahim +3 more
doaj +1 more source
A Ku-Band Low-Loss Traveling-Wave Power Divider using a Hollow Substrate Integrated Waveguide and Its Microstrip Transition [PDF]
Journal of Electromagnetic Engineering and Science, 2020 In this paper, we present a Ku-band low-loss traveling-wave power divider that uses a hollow substrate integrated waveguide (HSIW). For easy connection with microstrip-based devices and circuits, a low-loss transition between the microstrip line and the ...
Sung-June Hong +4 more
doaj +1 more source
Simulation of Impedance Discontinuities Resulting from Degradation of Interconnections on Printed Circuit Boards [PDF]
, 2011 Numerical simulation of impedance discontinuities resulting from degradation of interconnections on printed circuit ...
Dipartimento Di Elettronica +7 more
core +2 more sources
Design of Wideband Microstrip to SICL Transition for Millimeter-Wave Applications
IEEE Access, 2020 In this communication, the design and working principle of a wideband microstrip to substrate integrated coaxial line (SICL) planar transition for millimeter-wave applications is presented.
Idury Satya Krishna, Soumava Mukherjee
doaj +1 more source