Compare between short dipole and half wavelength dipole in terms of directivity, gain,  radiation pattern, polarization

Q: What is the cutting wavelength in a guide Orthogonal metallic wave field that magnetic Dimensions…

A: We need to find out dominant mode and cutting wavelength.

Q: a) Determine the magnitudes of the electric and magnetic fields of a half-wave dipole operated at a…

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Q: H.W. For a 2/4 dipole: 1. Find the radiation resistance. 2. Maximum directivity and maximum…

A: Dipole An electric dipole is a pair of charges that are equal and opposite, separated by a short…

Q: Elucidate the design considerations, working principle, limitations and applications of Rhombic…

A: The explanation is as follows.

Q: Comparing an electric dipole attenna and a magnetic dipole attenna, if the frequency is the same and…

A: According to the question, Comparing an electric dipole antenna and a magnetic dipole antenna, if…

Q: 3- The half wave dipole is widely used in more applications compared to other linear antenna…

A: We need to tell about the half wave dipole antenna.

Q: The directivity of the infinitesimal (ideal dipole) is equal to the directivity of short dipole,…

A: The concentration of an antenna's radiation pattern in a certain direction is measured by…

Q: A electric dipole consists of charges of magnitude 1048 nC separated by 6.23 µ?. It is in electric…

A: The magnitude of the electric dipole is given by the expression as shown below:  p=qdq=magnitude of…

Q: An active dipole in open circuit has a voltage of 120v and in short circuit it has a current of 25A.…

A: The active dipole can be seen as an ideal voltage source with an internal resistance. When it's in…

Q: The total dipole moment may reach a significant magnitude as a result of random .orientation True…

A: In random orientation the total dipole moment is the algebraic sum of all the dipole moments aligned…

Q: An air-filled circular waveguide of 2 cm inside radius is operated in the TE01 mode. a. Compute the…

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Q: 2. In thermal radiation, when temperature (T) increases, which of following relationship is correct?…

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Q: what are exambles of low linear energy transfer (LET) and high (LET) radiation?

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Q: a- Why should the transition probability be calculated in terms of electric dipole moment rather…

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Q: Example: Find beam solid angle and the maximum directivity Do if the normalised field nattern of a…

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Q: Explain the Beam radiation and diffusive radiation with necessary diagram.

A: Beam radiation: Direct radiation is another name for beam radiation. The rays in this radiation fly…

Q: (a) Figure 4(a) shows the transmission of high frequency voltage signal when it reaches at the point…

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Q: etc. when feed directly to folded dipole with 50v ohm coaxial cable Q3/ Explain how change of gain…

A: The answer as given below:

Q: Estimate the total length of dipole FM antenna (L) and the length of each dipole (E) in meter if the…

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Q: 22. Radiation resistance of a small dipole current element of length at a frequency of 3 GHz is 3…

A: Given- Frequency f=3 Ghz, Radiation resistance = 3 ohms, Length is changed by 1%, To Find- The %…

Q: A sample of HCI gas is placed in a uniform electric field of magnitude 8 x 104 N C!. The dipole…

A: The maximum torque experienced by each HCI molecule can be calculated using the formula: τ = pE sinθ…

Q: PROBLEM 4 Consider TM waves in a long rectangular waveguide of width w and height h. a) Calculate…

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Q: An antenna has an efficiency of 88% and a power gain of 6 dBi. a)Find the directivity. b)Find the…

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Q: Match the following parameters to the correct properties: Dipole follows the inverse-square law Line…

A: Dipole - consists of two opposite charges.

Q: The directivity for small dipole is

A: The directivity of an antenna is the ratio of the radiation intensity in a particular direction from…

Q: What will be the radiation resistance of a current element whole length is equal to one-tenth of its…

A: Radiation resistance (Rr) is a very important antenna parameter. It is defined as the resistance…

Q: Derive the energy conservation law for arbitrary media and for isotropic media. The conservation law…

A: Isotropic media do not possess any special direction in their structure (a high degree of spatial…

Q: Consider the path loss over a reflecting surface (2 ray model). Derive an expression for Ad…

A: Two ray model: This is a multiple path radio propagation model which signifies the path losses…

Q: A. A horizontal infinitesimal electric dipole of constant current lo is placed symmetrically about…

A: You have asked multiple independent questions. We are authorized to answer one question at a time.…

Q: Calculate the length in meter of a half-wave dipole for an operating frequency of 20 MHz assuming a…

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Q: An electrically short dipole antenna is excited by sinusoidal current distribution. If the antenna…

A: Radiation resistance is a fictitious resistance. When an antenna radiates, the total power radiated…

Antenna Characteristics

The antenna is an important concept in the domain of electronics and communication engineering. An antenna forms an integral part of many commonly used devices such as wireless modems, routers, game controllers, mobile phones, bluetooth devices, and so on. In simple terms, any wireless communication makes use of antennas to serve the purpose. An antenna, also known by the term 'arial', is an electrical device that converts electrical signals into electromagnetic waves or electromagnetic waves into electrical signals. An antenna contains a transmission line usually made up of co-axial cable, it then receives the signals and converts them into electromagnetic waves, which are then transmitted via space into their required destination. A communication system essentially makes use of two antennas, a transmission antenna, which converts electrical signals into electromagnetic waves, and a receiving antenna, which receives the electromagnetic waves and converts them back into electrical signals.