The Newest Advancement of Mobile Phone Antenna

Antenna Diversity in Mobile Phone

In the new generation of mobile communication systems, high data transmission rate and low bit error probability have been common requirements. However the issue of signal fading in a multi-path environment still stands as an major problem. Using antenna diversity techniques can overcome the problem. The main purpose of this thesis work is to implement receiver antenna diversity in a mobile ter...

Designs of Double whip Antenna for Mobile Phone

Whip type antennas are probably the most commonly used antennas in portable RF systems, such as cordless and cellular phones, RF enabled laptop computers, , and handheld computers. Whip antennas are almost always mounted on the chassis which contains the radio and other electronics. Normally in mobile phone two set of antenna used for receiving different application such as GSM and GPS. In this...

Safety Issues of Mobile Phone Base Stations

Mobile Phone Antenna with Reduced Radiation into Inner Ear

Health hazards are of great concern to cellular phone users. One important measure of the effect of electromagnetic radiation into human body is the specific absorption rate (SAR). If the human body is exposed to electromagnetic radiation, the amount of power absorbed by its tissues per mass volume should be limited and not to exceed a maximum SAR value. The cellular phone radiated through its ...

Circularly Polarized Monopole Mobile Phone Antenna for Gnss Applications

Circular Polarization is a method in which the electric field of the passing wave does not change the strength but only changes direction in a rotary manner. Circular polarization may be referred to as right-handed or lefthanded, and clockwise or anti-clockwise, depending on the direction in which the electric field vector rotates. Circular polarization is often used erroneously to describe mix...