A new design approach for dual-band patch antenna serving Ku/K band satellite communications

Abstract

A printed planar antenna with simple and intelligent geometrical structure has been proposed for Ku/K band satellite communication systems. The radiating patch of the antenna is formed by cutting rectangular slots and extending the radiating element to some extent. The final design of the antenna with optimized parameters is fabricated on ceramic-polytetrafluoroethylene substrate materials of dielectric constant ε r = 10.2. The antenna is excited through a microstrip feed line and has reduced ground plane that covers only the non-radiating portion of the antenna. The reduced complexity of the antenna is easy to fabricate and has overall dimension of 40 × 35 × 1.905 mm 3 . The results from experimental analysis show that the proposed antenna can guarantee a wide bandwidth of 12.0 to 16.4 GHz at lower band, and the upper band covers the frequency in the range of 17.53 to 19.5 GHz. The antenna has achieved appreciable gain in the range of 3.14 to 4.68 dBi for lower band and 2.03 to 3.65 dBi for upper band. The proposed antenna has offered almost symmetrical and directional radiation pattern that is essentially suitable for serving Ku/K band satellite applications.

A compact UWB patch antenna with defected ground for Ku/K band applications

“…Simulated and measured antenna gains are presented in inset of Figure and a maximum of 8.5 dBi gain is observed at 15.4 GHz (φ = 40° and θ = 50°).On perusal of Figure and Table , the peak gain observed for the proposed antenna is highest amongst the reported papers …”

“…The antennas reported in Ref. , and either have larger antenna size or equal antenna size than the proposed antenna but a lower bandwidth of 1.62, 2, 1.07, 0.95, 4.4, 1.97 GHz as compared to the proposed antenna. We observe maximum peak gain for the proposed antenna as compared to the antennas reported in Table and also the maximum radiation efficiency except for the antenna reported in Ref.…”

An ultra compact triple band antenna for X/Ku/K band applications

“…Researchers are trying to design a single antenna instead of multiple antennas for multiband applications such as dual band antennas, triple band antenna, quad band antenna penta band antenna, and hexa band antenna . The recent studies in the field of patch antenna is majorly emphasizing on X, Ku, and K bands as X band has wide application in fields of satellite, mobile, radio location, etc, and Ku/K band is primarily used for radar and broadcasting satellite television . Numerous designs covering the aforesaid applications and its parametric analysis thereof have been reported …”

Inverted L‐notch loaded hexa band circular patch antenna for X, ku/K band applications

“…In radar and satellite communications, the demand of low profile, high gain microstrip patch antennas are increasing. In recent years, many multiband planar antennas are reported by researchers for the X‐band (8–12 GHz), Ku‐band (12–18 GHz), and K‐band (18–27 GHz) applications …”