A Novel Modified Silicon Micromachining Process with Near-Zero Dielectric Loss for High-Efficiency Antenna Design up to Terahertz Band

2019 ◽  
Author(s):  
Yue Li ◽  
Peiqin Liu ◽  
Zhijun Zhang
Keyword(s):  
Dielectric Loss ◽  
High Efficiency ◽  
Antenna Design ◽  
Terahertz Band ◽  
Silicon Micromachining

scholarly journals Broken Heart Shaped Monopole Antenna for WiMAX Applications

2019 ◽  
Vol 8 (2) ◽  
pp. 2333-2337
Keyword(s):  
High Efficiency ◽  
Ring Resonator ◽  
Monopole Antenna ◽  
Size Reduction ◽  
The Other ◽  
Antenna Design

A monopole broken heart shaped antenna is presented in this article. The WiMAX band application has been taken as objective. The proposed antenna design is carried out in different iterations to obtain the required band. Proposed broken hearts shaped antenna works in the band from 3.2GHz – 4.1GHz.the heart shaped double slotted ring resonator (SRR) with two different radius is seen in the final iteration to enhance the bandwidth (900MHz), and gain (3dB). The other parameters such as VSWR (almost < 2 at WiMAX band), impedance (both real & imaginary), efficiency which is almost 89%has been noticed in this design. So, the proposed broken heart shaped monopole antenna which works at WiMAX band shows the moderate gain, size reduction omnidirectional pattern, high efficiency, etc. which are important in WIMAX application band.

Design of Microstrip Patch Antenna on Cylindrical Surface

2019 ◽  
Vol 8 (6S4) ◽  
pp. 612-614
Keyword(s):  
Dielectric Loss ◽  
Loss Tangent ◽  
Patch Antenna ◽  
Cylindrical Surface ◽  
High Frequency ◽  
Low Cost ◽  
Microstrip Patch Antenna ◽  
Antenna Design ◽  
Planar Surface ◽  
Microstrip Patch

Easy fabrications and low cost makes microstrip patch radiators more necessary for many applications. In this paper, some observations are made on microstrip patch mounted on a cylindrical curved surface with variation in radius. Considered patch antenna placed on a planar surface operating at a frequency of 5GHz. The same patch was placed on a cylindrical surface with radius of 15mm and 20mm and different properties of the antenna are measured. Here the cylinder will act as substrate and the material used for Substrate is FR4_epoxy with relative permittivity 4.4 and Dielectric loss tangent of 0.02. The antenna design and simulations are carried by High Frequency Structural Simulation (HFSS) tool

Graphene-Based Antenna Design for Communications in the Terahertz Band

2019 ◽  
pp. 25-45
Author(s):  
Sergi Abadal ◽  
Seyed Ehsan Hosseininejad ◽  
Max Lemme ◽  
Peter Haring Bolivar ◽  
Josep Solé-Pareta ◽  
...  
Keyword(s):  
Antenna Design ◽  
Terahertz Band

A High Efficiency Multi-Band Antenna for Mobile Communication Devices

2013 ◽  
Vol 411-414 ◽  
pp. 809-812
Author(s):  
Sheng Cai Jiao ◽  
Wen Zhou Sun
Keyword(s):  
Mobile Devices ◽  
Mobile Communication ◽  
High Efficiency ◽  
Antenna Design ◽  
Triple Resonance ◽  
Communication Devices ◽  
Multi Band

In this paper, we present a compact high-efficiency multi-band micro strip antenna for the mobile devices. At the same time, because most of antennas are located near the ground planar, the proposed antenna is designed with a ground planar. The antenna occupies a small size of 100*60mm2 and operates in CDMA(824-894MHz),GSM(880-960MHz), DCS(1710-1880),PCS(1850-1990),UMTS(1920-2170) and 3G band. By using a long slot, two trapezoid slots and a short slot, a triple resonance around 900MHz and another wideband resonance around 2100MHz can be created, respectively. Details of the antenna design are described , and its radiation performances results are presented and discussed. Keywords-Multi-band antenna;; mobile communication devices; hige-efficency

A Novel RFID Tag Dipole Antenna

2014 ◽  
Vol 513-517 ◽  
pp. 2808-2811
Author(s):  
Ming Lu He ◽  
Yan Bing Xue ◽  
Jing Zhang
Keyword(s):  
Return Loss ◽  
High Efficiency ◽  
Dipole Antenna ◽  
Antenna Design ◽  
Rfid Tag ◽  
Maximum Gain ◽  
Meander Line ◽  
Read Range

There is a problem in normal meander line antenna (MLA) that it is difficult to get performances of miniaturization, high efficiency and high inductance at the same time. A simple novel antenna design for this challenge is described. Two capacitive loads are added at the end of MLA to adjust the impendence. For saving material, holes are digged on the loads. Simulation by HFSS shows that, comparing with the regular MLA, the proposed antennas impedance enhances from 10-12j to 23+150j, and the maximum gain enhances from 1.31dB to 1.67dB, with a read range of 10.1m. Meanwhile the return loss at 915MHz is-34dB, with a wide-10dB bandwidth of 860 ~ 985 MHz.

Thermally resistant unsaturated polyester resin with low dielectric loss based on special benzyl alcohol terminated hyperbranched polysiloxane for producing high efficiency motors using vacuum pressure impregnation technique

RSC Advances ◽  
2016 ◽  
Vol 6 (8) ◽  
pp. 6672-6678 ◽  
Author(s):  
Cheng Zhou ◽  
Guozheng Liang ◽  
Aijuan Gu
Keyword(s):  
Dielectric Loss ◽  
High Efficiency ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Vacuum Pressure ◽  
Polyester Resins ◽  
Low Dielectric ◽  
Impregnation Technique ◽  
High Efficient ◽  
Hyperbranched Polysiloxane

New hyperbranched polysiloxane/unsaturated polyester resins for fabricating high efficient motors through vacuum pressure impregnation technique were developed.

Sign in / Sign up

Export Citation Format

Share Document