National Journal of Antennas and Propagation

Triple Frequency Micro Strip Patch Antenna Using Ground Slot Technique

K.MADHUSUDHANA RAO, M.N.D.KISHORE, M.PAVAN YOGESH, SK.ADAM SAHEB, K.HEMANTH — Sat, 11 Sep 2021 00:00:00 +0000

A micro strip patch antenna for wireless communications had proposed in this paper. The proposed antenna operates at three frequencies at 3.3GHz, 6.3GHz and 9 GHz which are mostly used for WLAN (C band) and radar, satellite communications (X band). Two rectangular slots are placed on the ground in order at achieve dual frequencies with good return loss less than -17dB and VSWR less than 1.4. The obtained results are simulated using ANSOFT HFSS software.

Sector Beam Synthesis in Linear Antenna Arrays using Social Group Optimization Algorithm

S.SRINIVASAREDDY, Y.V.NARAYANA, D.KRISHNA — Sat, 11 Sep 2021 00:00:00 +0000

The sector beam based radiation patterns have almost flat top in a two dimensional pattern. It is always a challenging task to synthesize such patterns. In this paper, the sector beams are generated using recently developed evolutionary computing tool known as social group optimization algorithm (SGOA). The technique involving both the amplitude and phase as design parameters is used and both the parameters of 20 elements of linear antenna array (LAA) are determined using the algorithm. The results are analysed in terms of radiation pattern plots. The simulations are carried out in Matlab.

24 Circular &22 Rectangular Microstrip Patch Antenna Array of 4.2GHz for Satellite Applications

Fri, 10 Sep 2021 00:00:00 +0000

Circular micro strip patch antenna array is designed at a frequency of 4.2 GHz. In this paper we are comparing 2x2 rectangular array and 2x4 circular array antenna with 1x4 circular array.2x4 circular array achieves more gain and better radiation pattern and return loss. This band of frequencies more suitable for satellite applications.

Circularly Polarized Fractal Patch Antenna With Probe Feed Technique For Wi-Max Applications

Tue, 07 Sep 2021 00:00:00 +0000

Circularly polarized Fractal patch antennas at two frequency ranges are to be resonated in this paper. This fractal antenna is performed better by using probe feeding technique. Existing method is resonate at 3.4GHz and proposed method resonating at 2.5 and 3.4GHz frequency ranges. Ground dimensions are 40mm x40mm and substrate dimensions are 26mm x 26mm, and substrate material is RT/Duriod5880. The proposed method involves unit cell structure with a size of 10mm x 10mm. This Paper enhances the frequency ranges and improves the gain and better return loss. These range of frequency ranges mostly useful for Wi-max applications. All Parameters are simulated by using HFSS software.

National Journal of Antennas and Propagation

Triple Frequency Micro Strip Patch Antenna Using Ground Slot Technique

Sector Beam Synthesis in Linear Antenna Arrays using Social Group Optimization Algorithm

2*4 Circular &2*2 Rectangular Microstrip Patch Antenna Array of 4.2GHz for Satellite Applications

Circularly Polarized Fractal Patch Antenna With Probe Feed Technique For Wi-Max Applications

24 Circular &22 Rectangular Microstrip Patch Antenna Array of 4.2GHz for Satellite Applications