Compact Dual Band Feed System for a Multifrequency Atmospheric Radar
The design, simulations and measurement results of a dual frequency feed horn operating at 35.75 GHz (Ka-band) and 94.05 GHz (W-band) are presented. The horn is designed to be used as a feed for a multifrequency atmospheric radar.
Srinivas Nagaraja +3 more
doaj +1 more source
Compact triple‐broadband implantable antenna for multi‐functions in telemedicine
A compact implantable antenna is designed to operate in the Medical Implant Communication Services (MICS; 402–405 MHz) band, 915‐MHz Industrial, Scientific, and Medical (ISM; 902–928 MHz) band, and 2.4‐GHz ISM (2.4–2.48 GHz) band; via the triple bands ...
Yi Fan +5 more
doaj +1 more source
ANALYSIS OF CHARACTERISTICS OF TWO-FREQUENCY (THREE-FREQUENCY) ANTENNAS WITH REACTIVE LOADS [PDF]
The results of a theoretical and experimental study of the distribution of the amplitude of a complex current, input resistances, the standing wave voltage coefficient, and the directional patterns of multifrequency and two-frequency linear microwave ...
V. V. Ovsyanikov
doaj +1 more source
Microwave Tomography With LSTM-Based Processing of the Scattered Field
The quantitative inspection of unknown targets or bodies by means of microwave tomography requires a proper modeling of the field scattered by the structures under test, which in turn depends on several factors related to the adopted antennas and ...
Alessandro Fedeli
doaj +1 more source
Testing the Performance of Multi-Frequency Low-Cost GNSS Receivers and Antennas
Global Navigation Satellite System (GNSS) low-cost multi-frequency receivers are argued as an alternative to geodetic receivers for many applications. Calibrated low-cost antennas recently became available on the market making low-cost instruments more ...
Veton Hamza, Bojan Stopar, Oskar Sterle
doaj +1 more source
Design of on‐chip antennas for THz detector and source in CMOS (Invited paper)
Different on‐chip antennas in Complementary Metal‐Oxide‐Semiconductor (CMOS) technology for THz detector and source are proposed. Firstly, the size of these antennas is estimated with an equivalent CMOS substrate model.
Lei‐Jun Xu, Xin‐Ke Zhao, Xue Bai
doaj +1 more source
ACTION CAMS AND LOW-COST MULTI-FREQUENCY ANTENNAS FOR GNSS ASSISTED PHOTOGRAMMETRIC APPLICATIONS WITHOUT GROUND CONTROL POINTS [PDF]
In civil, architectural and environmental fields photogrammetry is one of the most common solutions for deriving geometric information about many kind of objects of interest.
L. Morelli +4 more
doaj +1 more source
Multifrequency Observations of One of the Largest Supernova Remnants in the Local Group of Galaxies, LMC - SNR J0450-709 [PDF]
We present the results of new Australia Telescope Compact Array (ATCA) observations of one of the largest supernova remnants, SNR J0450-709, in the Local Group of galaxies.
Cajko, K. O. +2 more
core +6 more sources
Low-cost Global Navigation Satellite System (GNSS) receivers are currently used in various engineering applications. These low-cost devices are regarded as suitable sensors for applications in areas with a high risk of instrument damage.
Veton Hamza +3 more
doaj +1 more source
MEMS Tunable Frame Antennas Enabling Carrier Aggregation at 600 Mhz
The goal of this paper is to propose a tunable antenna system, that aims to cover the LTE low band (699–960 MHz), medium band (1710–2100 MHz) and high band (2100–2690 MHz), as well as the 600 MHz bands by tuning.
Carla Di Paola +4 more
doaj +1 more source

