Omnidirectional Circularly Polarized Antenna with High A novel omnidirectional circularly polarized (CP) slot array antenna with high gain is proposed, which is based on the coaxial cylinder structure, and the orthogonal slots radiated the circular polarization wave around the cylinder. Further, the improved dual circularly polarized (CP) omnidirectional antenna based on slot array in coaxial cylinder structure is presented too, and two ports are High-gain Millimeter-wave Planar Array Antennas with High-gain Millimeter-wave Planar Array Antennas with Traveling-wave Excitation Kunio Sakakibara Nagoya Institute of Technology Japan 1. Introduction High-gain and large-aperture antennas with fi xed beams are required to achieve high S/N ratio for point-to-point high-speed data-communication systems in the millimeter-wave band. Design of an Ultra-Wideband Spiral Antenna for Ground Design of an Ultra-Wideband Spiral Antenna for Ground-Penetrating Microwave Impulse Radar Applications Bradley Hutchinson Radar systems that allow early detection of underground IEDs can save lives. The Microwave Impulse Radar (MIR) capable of IED detection requires antennas capable of transmitting sub- Millimeter Wave Wideband High Gain Antenna Based on
High efficiency antennas can achieve a desired antenna gain with a relatively small area of circuit board thus offering the additional advantage of low weight and low cost.
Abstract: A coplanar waveguide (CPW) center-fed four-arm slot sinuous antenna is introduced in this letter. The antenna demonstrates broadband characteristics in terms of its split-beam radiation pattern and angle of maximum gain as well as multiband characteristics in terms of axial ratio (AR), omnidirectionality, polarization, and return loss. Omnidirectional Circularly Polarized Antenna with High ... A novel omnidirectional circularly polarized (CP) slot array antenna with high gain is proposed, which is based on the coaxial cylinder structure, and the orthogonal slots radiated the circular polarization wave around the cylinder. Further, the improved dual circularly polarized (CP) omnidirectional antenna based on slot array in coaxial cylinder structure is presented too, and two ports are ... High-gain Millimeter-wave Planar Array Antennas with ...
Directional antenna. A high-gain antenna ( HGA) is a directional antenna with a focused, narrow radiowave beam width. This narrow beam width allows more precise targeting of the radio signals. Most commonly referred to during space missions, these antennas are also in use all over Earth, most successfully in flat,...
Request PDF on ResearchGate | Split-Beam Mode Four-Arm Slot Sinuous Antenna | A coplanar waveguide (CPW) center-fed four-arm slot sinuous antenna is introduced in this letter. The antenna ... Sinuous Antennas | High Gain Sinuous Antennas | Steatite The Steatite family of sinuous antennas simultaneously handle signals of any two orthogonal linear polarisations and simultaneous left and right-handed circular polarisations dependent on antenna design.. This provides intercept opportunities for a wide range of arbitrarily polarised signals, from devices also giving a wide bandwidth and broad beamwidth. A ultra wide band sinuous antenna design with enhanced ...
a new planar feed for slot spiral antennas - NTRS - NASA
Low Profile Sinuous Slot Antenna for UWB Sensor - mdpi.com This article describes the design and implementation of a low-profile sinuous slot antenna, intended for ultra-wideband (UWB) sensor networks, which can be produced on one conductive layer. The article explains the design and optimization of the sinuous slot antenna and its modifications, including its sinusoidal curve shape. Other modifications were aimed at optimizing the antenna feeding. Antenna Symbols | Symbols of Antenna - Engineering Projects Slot Antenna: Coupling RF energy into a slot in a large metallic plain can result in radiated energy with a pattern similar to a dipole antenna mounted over a reflection surface. The length of the slot is typically one-half wavelength. Slot Microstrip Antenna for 2.4GHz RFID Reader Application
A directional antenna or beam antenna is an antenna which radiates or receives greater power in specific directions allowing increased performance and reduced interference from unwanted sources. Directional antennas provide increased performance over dipole antennas—or omnidirectional antennas in general—when greater concentration of radiation in a certain direction is desired.
A high gain TV antenna from Solid Signal gives you so much free HDTV to enjoy! The name “high gain” is just as it sounds – if you live far away from your local TV market, these antennas will capture the signal and deliver it to your home our business with crystal clear reception. Elson Agastra - Academia.edu A ground-backed slim slot-sinuous antenna is analyzed. Proposed configuration allows for a single lobe, polarization-versatile, high efficiency and ultra-wide band antenna not needing a the cumbersome lossy back cavity typical of conventional single lobe sinuous antennas. Simulations shows attained performances as well as tuning possibilities. Low Profile Sinuous Slot Antenna for UWB Sensor Networks
Low Profile Sinuous Slot Antenna for UWB Sensor Networks This article describes the design and implementation of a low-profile sinuous slot antenna, intended for ultra-wideband (UWB) sensor networks, which can be produced on one conductive layer. The article explains the design and optimization of the sinuous slot antenna and its modifications, including its sinusoidal curve shape. Spiral Antennas - Antenna Theory Spiral antennas belong to the class of "frequency independent" antennas; these antennas are characterized as having a very large bandwidth. The fractional Bandwidth can be as high as 30:1. This means that if the lower frequency is 1 GHz, the antenna would still be efficient at 30 GHz, and every frequency in between. high+gain+antenna - Staples Inc. high+gain+antenna. Staples Sites Print ... Add to cart Ubiquiti™ Networks™ airMAX® 900 MHz High-Gain Yagi Antenna With Rocket Kit, 16 dBi. $205.99.