As was briefly mentioned in section 1.7, 'wire' antennas are analysed through the radiating properties of r.f. currents on wires. The simplest wire antenna is the dipole, shown in figure 2.1(a). It is usually easier to derive the radiating properties of antennas when transmitting, and then...
areflected back into space. Aperture antennas are known for producing[translate] aused for microwave communications or for satellite Earth stations. Such[translate] aWhen an aperture antenna is used to transmit, power is directed towards[translate] ...
The two others designed antennas are the compact folded monopole antenna with 0.5 dBi gain, and the compact folded dipole antenna with 2 dBi gain. They were simulated using CST Microwave Studio full-wave simulator and measured. 展开 关键词: Folded dipole Wi-Fi applications metamaterial-inspired ...
4G LTE Yagi LPDA 12dBi Outdoor Booster Repeater Amplifier directional antennas lpda $4.80 - $7.80 Min. order: 10 pieces Easy Return 2DBI Gain 6 Sections Telescopic Antenna FM Radio Antenna $0.59 - $1.69 Min. order: 10 pieces Easy Return Factory Price Internal 1090Mhz PCB Antenna Built-in ...
And FWIW, I also discovered that indoor loops "work better" than indoor E-field probe types of antennas. If one can bring themself to do a little tinkering, play with loops. Uh.. the "perfect antenna" ? I thought it was something legendary like the "Graal" Seri...
131 - Coax-Cable Collinear Antennas 132 - Double Bobtail Antenna for 20m 133 - Collinear Zepp Antenna 134 - Taylor Vee Antenna for 20m 135 - Collinear Vertical Antenna 6dB-Gain for 2m, 1.3m, 73cm 136 - Bi-Loop Antenna for 20m 137 - Wire Beam 6dBd-Gain for 10m 138 - Sloping Diamond...
A design technique for wire antennas, based on the Structure-Based Evolutionary Programming, is used to design a broadband antenna with an end-fire radiation pattern and a very simple geometry, operating in the 3???16???GHz frequency band, namely, from the S band to the Ku band. The ...
Miniature Printed Antennas and Filters Using Volumetric Reactive Pins and Lumped Circuit Loadings This dissertation presents a new technique for miniaturization of printed RF circuits and antennas. The technique is based on lumped circuit elements and v... S Gupta - Dissertations & Theses - Gradworks...
The results show a minimum return loss of 14.24 dB and a gain of 0.22 dBi at 33.8 GHz. The radiation efficiency of the antenna is 74%, which is considerably higher than standard on-chip antennas. 展开 关键词: CMOS integrated circuits antenna radiation patterns finite element analysis impedance...
This invention relates to antennas of the trailing type for use with aircraft. 2. Description of the Prior Art In the prior art, a trailing type antenna consisted of a single wire trailed by the aircraft. Sometimes a weight was connected to the free end of the wire in an attempt to pro...