Zobrazeno 1 - 7
of 7
pro vyhledávání: '"D. F. Mona"'
Publikováno v:
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting.
This paper presents a performance analysis of an azimuth-only amplitude-comparison direction finding (DF) system in operational scenarios. The DF system is composed of two-squinted cavity-backed spiral antennas and it can move while in operation. Ini
Publikováno v:
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting.
The experimental characterization of the mechanical tension effects on a 2.25-GHz probe-fed rectangular truncated-corner microstrip antenna conformed on a cylindrical surface is presented in this work. Two prototypes were designed and built for a met
Publikováno v:
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting.
This paper presents a performance analysis of cross- and X-shaped arrays of cavity-backed spiral antennas for amplitude-comparison direction finding (ACDF) systems. First, an effective calibration strategy for the ACDF system is proposed, which uses
Publikováno v:
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
This paper presents an accurate and simple method to model the transition between a probe-fed microstrip antenna and a microstrip circuit, assembled in a back-to-back configuration. With the aid of a full-wave electromagnetic simulation tool the two-
Publikováno v:
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
The experimental characterization of the mechanical tension effects on a 2. 2 GHz probe fed circularly polarized rectangular microstrip antenna conformed on a cylindrical surface is presented in this work. Two prototypes were designed and built for a
Autor:
D. F. Mona, D. C. Nascimento
Publikováno v:
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
In this work, through the cavity model, the universe of achievable input impedances generated by the probe-fed circularly polarized rectangular microstrip antenna is investigated. Results of the analysis at the frequency of operation are displayed on
Publikováno v:
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC).
The design of an active integrated antenna (AIA) front-end circuit using the ATF-34143 field effect transistor (FET) in a minimum noise figure (NF) condition for GPS application is presented. Both RF and DC bias circuits are calculated for a co-desig