Compact broadband planar orthomode transducer
نویسندگان
چکیده
منابع مشابه
Tests of a planar L-band orthomode transducer in circular waveguide
This note describes tests made in March 2000 of a planar L-band orthomode transducer. The transducer consists of 4 probes symmetrically arranged in a circular waveguide and two wideband baluns, made from back-to-back slotline-to-microstrip transitions. We designed this device to model the performance of a millimeter wave transducer where probes and baluns are microfabricated with SiON thin-film...
متن کاملBroadband All-Optical Ultrasound Transducer
Real-time three-dimensional (3D) high-resolution ultrasound imaging requires 2D phased arrays operating at frequencies higher than 50 MHz, which poses a great challenge for piezoelectric technologies. A promising alternative is an optoacoustic array relying on optical generation and detection of ultrasound. We present an all-optical ultrasound transducer, which consists of a 2D gold nanostructu...
متن کاملBroadband Planar Monopole Antennas
Monopole antennas have several advantages but for their narrow bandwidth. Broadband planar monopole antennas have all the advantages of the monopole in terms of their cost, and ease of fabrication besides, yielding very large bandwidths. For many applications large bandwidth is required. Recently, many techniques to tailor and optimize the impedance BW of these antennas have been investigated. ...
متن کاملDesign of Broadband Compact Size Antenna Comprised of Printed Planar Dipole Pairs
Abstract—In this paper, a wideband planar dipole antenna is proposed. Compared to conventional dipole antennas, this antenna has wideband impedance matching, simple structure and compact size. From EM simulations, dimensions of antennas are chosen for better performance. For verification, this newly proposed structure is fabricated and measured. It is shown that return loss of the antenna betwe...
متن کاملThe Bøifot Orthomode Junction
Wideband dual-polarization performance is desired for low-noise receivers and radiom eters at cent imete r and m illimeter wavelengths. The use of a waveguide orthomode transducer (OMT) can increase spectral coverage and sensitivity while reducing exit aperture size, optical spill, and instrumental polarization offsets. For these reasons, an orthomode junction is favored over a traditional quas...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Electronics Letters
سال: 2007
ISSN: 0013-5194
DOI: 10.1049/el:20071649