Results 101 to 110 of about 314,572 (210)

Wideband 0.5–50 GHz double‐ridged guide horn antenna using coaxial‐to‐ridge waveguide launcher

IET Microwaves, Antennas & Propagation
Ever‐increasing bandwidth requirements from various industries drive the need for the ever‐increasing bandwidth of antennas used for testing.
Bennie Jacobs, Johann W. Odendaal, Johan Joubert   +2 more
doaj   +1 more source

Compact H-Plane CLAF-SIW Horn Antenna With Phase Front Correction

IEEE Access
This work presents an H-plane contactless air-filled substrate-integrated waveguide (CLAF-SIW) horn antenna, whose directivity is enhanced by incorporating a metalens along the horn flaring.
Andres Biedma-Perez, Cleofas Segura-Gomez, Angel Palomares-Caballero, Pablo Padilla   +3 more
doaj   +1 more source

Computer modelling of non-conventional horn antennas

, 2008
This Bachelor’s Thesis is dealing with research of optimization method PSO and its using to increase directionality axial symmetry horn antennas.
Divín, Jan
core  

“Hands‐On” white matter anatomy: Using Air Anatomy gestures and tractography on simple brain sections to enhance teaching of white matter directions

Anatomical Sciences Education, EarlyView.
Abstract Teaching white matter (WM) anatomy to undergraduates is challenging. This is partly because WM fibers are oriented intricately and Klingler's dissection, the gold standard method used to demonstrate it, often requires time, advanced anatomical knowledge, and refined dissection skills.
Doris George Yohannan, Rohini Punja, Thomas Iype, Chandrasekharan Kesavadas, Bejoy Thomas, Kannanvilakom Govindapillai Umesan, Aswathy Maria Oommen, Usha Devi Keezhathil Bhargavi   +7 more
wiley   +1 more source

GO Shaping of Omnidirectional Dual-Reflector Antennas with Arbitrary Main-Beam Direction in Elevation Plane by Connecting Conic Sections

International Journal of Antennas and Propagation, 2018
This work discusses an alternative geometrical optics (GO) technique to synthesize omnidirectional dual-reflector antennas with uniform aperture phase distribution together with an arbitrary main-beam direction for the antenna radiation pattern. Sub- and
Rafael A. Penchel, Sandro R. Zang, José R. Bergmann, Fernando J. S. Moreira   +3 more
doaj   +1 more source

Novel Schemes For Sidelobe Reduction In Horn Antennas

, 1989
A numerical technique based on the moment method is used to study different schemes for reducing the E-plane sidelobe and backlobe power levels of waveguides and horn antennas by attaching elliptic and spiral shaped flanges to the aperture edges of these
Chamma, W. A., Hamid, M.
core   +1 more source

EBHIS Local Volume Galaxy Hi Survey (LVGHIS)

Astronomische Nachrichten, EarlyView.
ABSTRACT Here, we present the “Local Volume Galaxy Hi Survey” (LVGHIS). It is based on the first data release of the Milky Way portion of the Effelsberg Bonn Hi‐Survey (EBHIS). We homogeneously measured the mass and dynamics of the local volume galaxies within the radial velocity limit of |vLSR|≤600kms−1$$ \mid {v}_{\mathrm{LSR}}\mid \le 600\kern0.6em \
V. A. Schulz, J. Kerp, A. C. Schröder, B. Winkel   +3 more
wiley   +1 more source

Nested Horn‐Based 3D‐Printed Dual‐Band High‐Gain Conical Beam Antenna

IET Microwaves, Antennas & Propagation
Dual‐band antennas have found extensive applications in the fields of communications, guidance, tracking systems, etc. However, traditional designs often struggle to simultaneously achieve high gain, wide impedance bandwidth and conical beam ...
Li Wu, Sipei Wu, Shuai Zhang, Hui Xue, Boyang Qian   +4 more
doaj   +1 more source

A Modular Approach for the Design of Quadruple Ridged Flared Horn Antenna Feeds

IEEE Access
This paper presents the methodology followed for the design of a quad-ridged flared horn (QRFH) feed for the VLBI Global Observing System (VGOS) antennas.
Oscar Garcia-Perez, Felix Tercero, Alejandro Baldominos, Gabriel Gomez-Molina, Alberto Garcia-Merino, David Regajo-Rodriguez, Rocio Sanchez-Montero   +6 more
doaj   +1 more source

Arthroscopic All‐Inside Meniscal Tying for Anterior Horn Bucket‐Handle Meniscal Injuries

Arthroscopy Techniques, EarlyView.
Abstract Anterior horn meniscal tear is a relatively uncommon injury to be seen in our knee arthroscopy surgeries. It can be a part of a bucket‐handle tear or less commonly in isolation. Several repair techniques have been used to treat this injury, with the most commonly used ones being the outside‐in and inside‐out techniques, with the disadvantage ...
Ziyad El Qirem, Wael Al‐Atout, Mohamad Makahleh, Barakat Elsaqa   +3 more
wiley   +1 more source