نتایج جستجو برای: mobile antenna
تعداد نتایج: 213971 فیلتر نتایج به سال:
This paper presents a procedure for the evaluation of the Electromagnetic (EM) interaction between the mobile phone antenna and human body, i.e., head and hand, and investigates the factors may influence this interaction. These factors are considered for different mobile phone handset models, different form factors and different antenna types, operating in the GSM900, GSM1800/DCS, and UMTS/IMT2...
Abslmct This paper presents the experimental investigation of a dual-operation antenna operating in the L-band region. The basis of the design is the basic rectangular patch. The patch is perturbed with embedded two L-section structures. The chosen frequencies are 1.575 GHz for Giobal Positioning System (GPS) satellite receiver and 1.8 GHz for Global System for Mobile (GSM). The antenna has bee...
As wireless communication applications require more and more bandwidth, the demand for wideband antennas increases as well. For instance, the ultra wideband radio (UWB) utilizes the frequency band of 3.1–10.6GHz.This paper presents a work carried out within ULTRAWAVES in the area of antenna design and analysis. A new multilayer microstrip antenna is introduced using Stacked Multiresonator patch...
MULTIPLE antenna (also known as MIMO: multiple input and multiple output) techniques have been widely accepted as a promising scheme to improve the spectral efficiency of mobile communication systems. MIMO becomes increasingly essential as the demand for broadband wireless data transmission increases. It has been supported by various international standards such as 3GPP LTE (3rd Generation Part...
This paper presents a novel design of a microstrip patch antenna with compact nature and the study of various antenna parameters to suit the applications such as WiMax operating in the frequency range of 3.3 – 3.5 GHz and in other applications like fixed satellite services, maritime mobile services etc. covering 2 4 GHz of S-band frequency spectra. It is experimental observed that by placing st...
A design of dual-band balanced antenna structure operating in the 700 and 2600 MHz LTE bands is studied and investigated. The overall dimensions of the radiator are 50 × 18 × 7 mm allowing it to be easily concealed within mobile handsets. A broad-band balun is designed and integrated with the antenna handset in order to provide the feeding network and perform the measurements of the antenna rad...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید