Brief Summary of Antenna for UAV, WLAN, WiMAX and WiGig Applications
The Antenna which is a heart of communication system. Day-to-day advancements take place in this field. Therefore, I tried to list out some useful papers on UAV, WLAN, WiMAX and WiGig applications.
Let’s start learning!
- A Compact Tri-Band Horizontally Polarized Omnidirectional Antenna for UAV Applications, Yuehui Cui, Member, IEEE, Peng Luo, Qing Gong, and RongLin Li, Senior Member, IEEE
Compact Horizontally polarized tri band omnidirectional antenna is proposed which can be easily mounted on UAVs. Consisting of a folded patch with the vertical slot in a metal box and operates in first order of resonant mode for lower band and second order mode for the upper band with the size of 0.32l0 ´ 0.16l0 ´ 0.08l0 of the folded patch. Two slits are proposed to enhance the bandwidth. Use of Teflon pads and nylon bolts for the support of folded patch. Folded patch extension elevates the length to modify the resonant frequency for lower band. Length of the patch is 126.2 mm which is exactly the half the wavelength in free space at 1.2 GHz. Therefore, due to tapering of the patch lower band and upper band resonances are observed at 1.2Ghz and 2.1GHz respectively. This antenna can cover 840.5–845 MHz (first-order mode), 1430–1444 MHz (slot mode), and 2408–2440 MHz (second-order mode) frequency bands for unmanned aerial vehicle (UAV) systems with proper omnidirectionality with return loss more than 10 dB and can work on dual band operation. Subsequently, there is much variation in gain of 5 dB in upper band due to the presence of a metal box.
2. Compact CPW-Fed Tri-Band Printed Antenna with Meandering Split-Ring Slot for WLAN/WiMAX Applications, Pingan Liu, Yanlin Zou, Baorong Xie, Xianglong Liu, and Baohua Sun
Wide application in wireless communication of Tri band printed antenna is presented for WiMAX and WLAN applications which is a rectangular slot with modification, a Y-shaped monopole radiator with a meandering Split-Ring slot and a symmetrical inverted L-strips pair. Impedance bandwidth for return loss less than 10 dB is 430 MHz (2.33–2.76 GHz), 730 MHz (3.05–3.88 GHz), and 310 MHz (5.57–5.88 GHz) which can cover bands for WiMAX and WLAN. Three antennas with disparate resonant structure have been designed which results in steady gain and proper radiation pattern.
3. A Novel Tri-band Patch Antenna with Broadside Radiation and Its Application to Filtering Antenna, Jian-Feng Qian, Fu-Chang Chen, and Qing-Xin Chu
For WiMAX and WLAN applications, a Tri band patch antenna is using TM10 mode with modified TM30 and TM20 modes of a single patch is designed. Three operational bands are achieved with good impedance matching through aperture coupling. An antenna with 2.5-GHz, 3.5-GHz, and 5.2-GHz is analysed. Fractional impedance bandwidths of 2.8%, 2.3%, and 2.7% of 2.46–2.53 GHz, 3.47–3.55 GHz, and 5.15–5.29 GHz respectively. Tri Band Filtering antenna is designed by augmenting number of resonators on the feeding body with 2.58–2.68 GHz, 3.50–3.61 GHz, and 5.21–5.45 GHz operational bands. Shows sharp roll off and excellent filtering response. Slot and stub loading are used for field distributions of TM20 and TM30 modes for broadside radiation and frequency control. Broadside radiation and good impedance matchings are achieved in all the three bands on both antennas.
4. Tri-band microstrip antenna design for wireless communication applications, Gehan Sami, Mahmoud Mohanna, Mohamed L. Rabeh
Tri band patch antenna for wireless communication applications in WLAN and WiMAX. An antenna with shorting elements and slots has been proposed for achieving multi band operation. Optimal location was obtained with the usage of Genetic Algorithm with HFSS software and optimization technique. Impedance matching of 5.8 %, 3.7% and 1.57% at 2.4 GHz, 3.5 GHz and 5.7 GHz respectively of the patch with the size of 36.56 x 43.42 x 1.588 mm. With the help of HFSS, rectangular slotted microstrip antenna’s initialization of parameters and checked whether S11 converges or not and the resultant parameters can be optimized. Results has been deviated by 0.08 GHz.
5. A Triple-Frequency, Vertex-Fed Antenna for WLAN/WiMAX Applications, Painam Surendrakumar and Bhuma Chandra Mohan
Amalgamating the different communication system into a single antenna system is made with the implementation of triple band antenna. Multiband antennas were preferred for minimizing the interference. E-plane couple MSA antenna with two elements was proposed with defected base design. Utilized for WiMAX at 3.2– 3.6 GHz, WLAN at 5.15–5.35 GHz, and 5.8 GHz WLAN 5.725–5.825 GHz applications. The antenna resonates at 3.24, 5.17, and 5.85 GHz and meets the desired requirement of voltage standing-wave ratio (VSWR) lower than 2. An inverted F-antenna with radiating conductors on substrate’s both sides has been implemented fr enhancement of gain. Inverted antenna with F, M and L shaped have been analysed for triple band configurations. A slot with a pentagonal tuning stub for WLAN and upper UWB applications have been given. Escalation in the radius of circular slot leads to the coupling gap between pentagonal ring slot and E-strip.
6. Tri-band microstrip-fed monopole antenna with dual-polarisation characteristics for WLAN and WiMAX applications, Ting Wu, Xiao-Wei Shi, Ping Li and Hao Bai
Wide application in WLAN. Tri band monopole microstrip antenna for WLAN and WiMAX with dual-polarization characteristics. A circularly polarised antenna with Y-shaped radiating and partial ground with monopole arms and circular monopole. It can achieve impedance bandwidths and frequency bands of the WLAN (2.4–2.484 and 5.8 GHz) and the WiMAX (3.4–3.7 GHz).
7. Electrically Small Metamaterial-Inspired Tri-Band Antenna with Meta-mode Cheng Zhu, Member, IEEE, Tong Li, Ke Li, Zi-Jian Su, Xin Wang, Hui-Qing Zhai, Member, IEEE, Long Li, Senior Member, IEEE, and Chang-Hong Liang, Senior Member, IEEE
Meta material antennas for 4G wireless communication are proposed. Consideration of two antennas have been made. Coplanar waveguide is given into a radiator in antenna 1 which takes triangular electromagnetic resonator. Frequency bands of 1.78~1.84GHz, 2.34~3.86 GHz and 5.75~5.87 GHz are received. Band 3 is not perfectly matched but covers WiMAX and WLAN bands. Antenna 2 uses complementary TER on ground which overcomes the matching issue in band 3.
8. An Integrated Tri-Band Antenna system with large frequency ratio for WLAN and WiGig applications
Integrated system of antenna with millimetre and micrometre have usage in wireless communication system. A magnetic-electric dipole at 60 GHz and stacked patch antenna at 2.4–2.5 GHz with sharp aperture is designed with size of 1.12 x 1.12 x 0.1 mm and 3 input ports. Good isolation, linear polarization and broadside radiation pattern is featured. Three bands with good impedance matching helps to satisfy WLAN band of 2.4–2.485 GHz and 5.18–5.85 GHz and WiGig band of 57–64 GHz. This works similar to Waveguide and Fabry-Parrot resonators, patch and slot, patch and SIW slot and dipole antennas in large frequency ratio.
