Tuning Graphene Surface Resistance for a 52 GHz Nano-Antenna

2015 ◽  
Vol 754-755 ◽  
pp. 1151-1155
Author(s):  
A.A.M. Ezanuddin ◽  
A.H. Ismail

The commercial potential of the 60 GHz band, in combination with the scaling growth of graphene nanotechnology, has resulted in a lot of digital graphene circuits for millimeter-wave application. This work presents a 0.345 nm monolayer graphene film on substrates SiO2/Teflon/Copper as a new nanoantenna. The nanoantenna achieves 2.003 of maximum gain (Abs) with particularly the graphene sheet resistance and reactance as the key variables. The presented nanoantenna targets 52 GHz communication where beamforming is required.

2004 ◽  
Vol 43 (No. 7B) ◽  
pp. L966-L968 ◽  
Author(s):  
Hiroshi Fushimi ◽  
Tomofumu Furuta ◽  
Tadao Ishibashi ◽  
Hiroshi Ito
Keyword(s):  

Author(s):  
Jae-Jin Lee ◽  
Dong-Yun Jung ◽  
Inn-Yeal Oh ◽  
Chul-Soon Park
Keyword(s):  

Author(s):  
Mohammed B. Majed ◽  
Tharek A. Rahman ◽  
Omar Abdul Aziz

The global bandwidth inadequacy facing wireless carriers has motivated the exploration of the underutilized millimeter wave (mm-wave) frequency spectrum for future broadband cellular communication networks, and mmWave band is one of the promising candidates due to wide spectrum. This paper presents propagation path loss and outdoor coverage and link budget measurements for frequencies above 6 GHz (mm-wave bands) using directional horn antennas at the transmitter and omnidirectional antennas at the receiver. This work presents measurements showing the propagation time delay spread and path loss as a function of separation distance for different frequencies and antenna pointing angles for many types of real-world environments. The data presented here show that at 28 GHz, 38 GHz and 60 GHz, unobstructed Line of Site (LOS) channels obey free space propagation path loss while non-LOS (NLOS) channels have large multipath delay spreads and can utilize many different pointing angles to provide propagation links. At 60 GHz, there is more path loss and smaller delay spreads. Power delay profiles PDPs were measured at every individual pointing angle for each TX and RX location, and integrating each of the PDPs to obtain received power as a function of pointing angle. The result shows that the mean RMS delay spread varies between 7.2 ns and 74.4 ns for 60 GHz and 28 GHz respectively in NLOS scenario.


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