Patent
Parasitically coupled, complementary slot-dipole antenna element
TLDR
A parasitically coupled, complementary slot dipole antenna element includes a driven, cavity-backed slot antenna element and a parasitic dipole element transverse to the slot of the cavity-supported antenna element as discussed by the authors.Abstract:
A parasitically coupled, complementary slot dipole antenna element includes a driven, cavity-backed slot antenna element and a parasitic dipole element transverse to the slot of the cavity-backed slot antenna element. The cavity-backed slot and parasitic dipole antenna elements resonate at about the center frequency of the excitation signals supplied to the cavity-backed slot antenna element in order to generate a relatively symmetrical electromagnetic signature and an increased bandwidth.read more
Citations
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Patent
Serially-fed phased array antennas with dielectric phase shifters
TL;DR: A phased array antenna includes a plurality of radiating elements, a feed line assembly, and a ground plane positioned between the radiating element and the feed line, with the ground plane having a plurality opening positioned between radiating and feed line assemblies and a voltage tunable dielectric phase shifters coupled to the feedline assembly as mentioned in this paper.
Patent
Planar dual polarization antenna
TL;DR: In this paper, a microwave-frequency microstrip antenna (10) simultaneously usable for both transmitting and receiving microwave frequency signals that have dual orthogonally polarized components was presented. But the authors did not consider the use of a meanderline polarizer for converting from linear polarization to circular polarization.
Patent
Satellite based vehicle guidance control in straight and contour modes
TL;DR: In this article, the authors proposed a method for steering an agricultural vehicle comprising: receiving global positioning system (GPS) data including position and velocity information corresponding to at least one of a position, velocity, and course of the vehicle; computing a compensated heading, the compensated heading comprising a blend of the yaw rate signal with heading information based on the GPS data.
Patent
Antenna structures and methods for omni directional radiation patterns
TL;DR: In this paper, a radio frequency identification (RFID) chip that receives and modulates a Radio Frequency (RF) signal was provided for use with a RFID chip that received and modulated a RF signal, and a substrate of the device includes a first short dipole antenna structure that backscatters a received RF signal to produce a first radiation pattern having nulls.
Patent
Gnss guidance and machine control
TL;DR: In this article, a global navigation satellite sensor system (GNSS) and gyroscope control system for vehicle steering control comprising a GNSS receiver and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier phase position differences.
References
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Patent
Stripline fed hybrid slot antenna
TL;DR: In this article, a planar antenna is described which employs a pair of closely spaced parallel ground planes and a radiating element which is a composite aperture (hybrid slot) formed into the upper ground plane.
Patent
Reduced height monopole/slot antenna with offset stripline and capacitively loaded slot
TL;DR: In this article, a reduced height monopole/slot antenna having generally parallel spaced ground planes, the upper one having a slot therein, a stripline located between the ground planes and a monopole extending from the pole through said slot generally orthogonally through the upper ground plane and being top hat loaded at the outer end thereof.
Patent
Compact multifrequency band antenna structure
TL;DR: In this paper, a compact multifrequency band antenna structure is disclosed, which consists of a first and second antenna sections, each one of which is arranged to form an integral antenna structure, and the second antenna section is constructed such that the polarization of the radiation associated therewith is orthogonal to the polarization associated with the slotted waveguide planar array antenna.
Patent
Small, broadband, unidirectional antenna
TL;DR: A non-resonant antenna structure for the reception and/or radiation of electromagnetic waves in a unidirectional manner over a broad frequency band was proposed in this article, which consists of two resonant elements of dual type fed simultaneously from the same transmission line.