An improved approximate gain formula for conical horn

Abstract

A printed arc-shape wide-slot antenna with a staircase-shape patch and a conductor-backed absorber has been developed experimentally. It has a wide impedance bandwidth of 132.8%, which is ranged from 2.19 to 10.8 GHz. Moreover, it has broadside radiation patterns over such wide operating bandwidth. Furthermore, it has small size and low profile. Consequently, it is very suitable for the UWB communication systems.

A novel conical horn antenna loaded with ball cone dielectric

“…Therefore, we use a circle to fit the hyperbolic. The radius of the circle is 0 R , the center is located in 2 O point. The ball cone dielectric loaded horn is shown in Fig.1 [11].…”

“…The normal smooth wall conical horn antenna (SWCH) is often used as a direct radiator, as a standard gain horn, and as a feed for reflector antennas [1,2]. Despite the advantage of the conical horn has high gain, high power handling capability, and construction simplicity, but its asymmetry radiation pattern and high cross-polarization level often limit its use [3,4].…”

“…According to Fermat principle, we can see optical path from S to point P1 is equal to the optical path from S to point P2. So get the following equation2 2…”

Approximate Closed-Form Expression of the Electric Field of a Conical Horn Antenna

“…Some analyses have also been done on approximate gain formulas of conical horns [10], [11]. These works also lack complete electric field analysis.…”

Derivation of Conditions for the Normal Gain Behavior of Conical Horns

“…This paper proceeds as follows. In Section 2, the approximate conical horn gain formula [3] used in the derivations is presented. The derivation of minimum axial length for the given optimum aperture diameter is discussed in Section 3, while Section 4 presents the derivation of an expression for determining the maximum aperture diameter for the given optimum axial length.…”