DC/AC Performance Analysis of Indium Antimonide Nanowires

2011 ◽  
Vol 1336 ◽  
Author(s):  
Ali Bilge Guvenc ◽  
Miroslav Penchev ◽  
Jiebin Zhong ◽  
Cengiz Ozkan ◽  
Mihrimah Ozkan

ABSTRACTWe investigated the electrical properties and transmission line performance of indium antimonide nanowires. The results indicate that the of nanowires suffer from low mobility values on the order of 10-to-15 cm2V-1s-1 because of the contact resistances, scattering due to their small diameters, crystal defects and oxidation occurs during growth and cooling. nanowires show extremely inductive behavior during the AC measurements and due to these parasitic parameters, they can sustain transmission for the signals having frequencies up to 10 MHz. The bandwidth of the nanowires is directly proportional to the diameter of the nanowires. Improving the mobility to higher values and introducing de-embedding and impedance matching to the measurements and analysis could easily carry the bandwidth beyond GHz levels.

2011 ◽  
Vol 1350 ◽  
Author(s):  
Ali Bilge Guvenc ◽  
Miroslav Penchev ◽  
Jiebin Zhong ◽  
Cengiz Ozkan ◽  
Mihrimah Ozkan

ABSTRACTWe investigated the data transmission performance of indium antimonide (InSb) nanowires (NWs) synthesized on InSb (100) substrate using chemical vapor deposition (CVD) having diameters of 20 nm and below. The results indicate that the data transmission performance of NWs suffer from low mobility values on the order of 10-to-15 cm2V-1s-1 because of the scattering due to their small diameters, crystal defects and oxidation occurs during growth and cooling. The 20 nm NWs can sustain data rates up to 5 mega bits per second (Mbps) without any impedance matching and de-embedding of the parasitic parameters coming from the measurement system with a bit error rate (BER) level of 10-8. The data rate is directly proportional to the diameter of the NWs.


1999 ◽  
Vol 33 (7) ◽  
pp. 712-715 ◽  
Author(s):  
N. G. Kolin ◽  
D. I. Merkurisov ◽  
S. P. Solov’ev

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mohammad Alibakhshikenari ◽  
Bal S. Virdee ◽  
Ayman A. Althuwayb ◽  
Leyre Azpilicueta ◽  
Naser Ojaroudi Parchin ◽  
...  

AbstractThe paper demonstrates an effective technique to significantly enhance the bandwidth and radiation gain of an otherwise narrowband composite right/left-handed transmission-line (CRLH-TL) antenna using a non-Foster impedance matching circuit (NF-IMC) without affecting the antenna’s stability. This is achieved by using the negative reactance of the NF-IMC to counteract the input capacitance of the antenna. Series capacitance of the CRLH-TL unit-cell is created by etching a dielectric spiral slot inside a rectangular microstrip patch that is grounded through a spiraled microstrip inductance. The overall size of the antenna, including the NF-IMC at its lowest operating frequency is 0.335λ0 × 0.137λ0 × 0.003λ0, where λ0 is the free-space wavelength at 1.4 GHz. The performance of the antenna was verified through actual measurements. The stable bandwidth of the antenna for |S11|≤ − 18 dB is greater than 1 GHz (1.4–2.45 GHz), which is significantly wider than the CRLH-TL antenna without the proposed impedance matching circuit. In addition, with the proposed technique the measured radiation gain and efficiency of the antenna are increased on average by 3.2 dBi and 31.5% over the operating frequency band.


2021 ◽  
Vol 55 (3) ◽  
pp. 315-318
Author(s):  
V. F. Kabanov ◽  
A. I. Mikhailov ◽  
M. V. Gavrikov

2021 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
G. ANKALIKI SHEKHAPPA ◽  
S. VIBHUTI PRADEEP ◽  
S. SUREBAN MANJULA ◽  
P. AMMINABHAVI SANJEETH ◽  
◽  
...  

Author(s):  
Eugene A. Ogbodo

This chapter proposes the use of asynchronously coupled-resonator junctions (ACJ) in the design of a multi-input multi-output (MIMO) filtering network and a masthead combiner (MHC). By employing the resonator junctions, miniaturised circuits are achieved without using any transmission-line-based impedance matching circuits. The main challenge in the designs is the control and implementation of the external couplings at the common ports of this all-resonator-based MIMO filtering network and MHC. Both devices are four ports-based with the MIMO filtering network operating at 1.8, 2.1, and 2.6 GHz, while the MHC operates at the two channels of 1.8 and 2.1 GHz. The demonstrated designs achieved fractional bandwidths of 1.764 GHz to 1.836 GHz, 2.058 GHz to 2.142 GHz, and 2.548 GHz to 2.652 GHz, respectively. Good agreements have been achieved between the measurements of the prototype devices and the simulations.


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