Polarization in Antenna
Polarization is the basic thing used in transmission antennas for the propagation and reception of the signals. As we know that antenna emits electromagnetic waves in the space for the communication purposes. These two types of waves as depicted by the name Electro-Magnetic is a combination of electrical and magnetics fields. These two waves are mutually orthogonal i.e. oriented at an angle of 90o with each other. The general wave form is given as
Fig: Electromagnetic Waves
At the receiving side there is a problem that if we receive the magnetic wave also then there is an interference of the two waves and the message can be distorted and there is a loss of power in the message and we know that the power of the signal…
Microstrip Patch Antenna
Ahmed T. Hassan
Abstract—The paper represents the design and the simulation of high a high gain 2.4GHz Microstrip Rectangular Patch Antenna for wireless communication applications.
Index Terms—Microstrip Patch Antenna, Radiation Pattern, VSWR, S-Parameter
Recently, The Microstrip Patch Antennas became one of the most demanding antenna based as the high demand of antennas for wireless communication systems such as wireless local area network (WLAN),…
In antenna theory of analysis and design, the most forward looking topic is microstrip patch antenna. Microstrip patch antennas are made to have many different geometrical shapes and dimensions but among all the shapes of microstrip patch, four of them are most common than another that are square, rectangular, dipole and circular. They are employed in wide range of modern applications because of their easiness to design and compatibility with printed-circuit technology.
(MIMO) System of two U-shape patch antennas has been evolved for the UWB application. Spacing between two elements of antennas is 0.270 at 3.1GHz for the UWB operation. To enhance isolation and increase bandwidth impedance, fork shaped stub added in the ground plane of the antenna. Due to interference of WIMAX (3.3-3.7 GHZ) and WLAN (5.2-5.8 GHz) on UWB dual
band notch function is perform. For achieving the dual band notch characteristics, trekking slot cut in the patch with feed and C-…
receiver. Next, RF transmission is greater than more reliable than IR transmission. RF conversation makes use of a unique frequency unlike IR signals, who are affected, by mean IR emitting sources. This RF module contains an RF Transmitter or an RF Receiver. The transmitter/receiver (Tx/Rx) associate operates at a frequency regarding 434 MHz. An RF transmitter receives serial facts and transmits it wirelessly via RF via its antenna related at pin4. The transmission takes place at the degree…
-It is very practical and is used in Japan in Modern Land Mobile Radio Systems.
• Demerits of this model:
-It has a slow response for rapid changes in terrain. Thus, it is fairly good in urban and sub urban areas but it is not so good in rural areas.
3. Hata model:
• This model is an Empirical Formulation of graphical path loss data that is given by Okumura.
• Its frequency range is 150 MHz – 1500 MHz.
• Its formulation is limited to only certain ranges of input parameters.
• Its formulations…
(D. Tse and P. Viswanath, 2005) In 151, the proposed scheme is known as "the diversity of user cooperation," the author of this particular plan to achieve the rate in the region and the probability of failure. Sendonaris, who proposed a simple method of user cooperation, based on a signal of DF with the CDMA scheme. According to Liu (2009), different users with different orthogonal spreading codes can distinguish between different forms of cooperation from users to send information to the…
BREAST CANCER DETECTION BY T-SHAPED SLOTTED RECTANGULAR MICROSTRIP PATCH ANTENNA
This Paper shows the great achievement in the breast cancer detection by microwave imaging ,in this paper firstly the T-Shaped Slotted RMPA is designed for ISM band Application at 2.45 GHz and resonated at particular frequency by iterations on the simulation software and very low losses is shown on particular exact frequency is 32.2dB ,after that The Breast Phantom model with cancer tissues and RMPA…
the bug is coming to spread love. They are also used to fly to each house to spread love. The heart shapes help with there appearance but it also helps to attract mates. The heart shaped wings make for fast flying to get to each house.
Structure 2: The love bug has a colorful and sparkling head and abdomen. This attracts the opposite sex. The glitter reflects against the sun shining, the wind also causes the glittery hair to move though air and catch mates attention. The love bug is very…