Reduction of multiple‐input multiple‐output specific absorption rate synthesized using a fast estimation model

2019 ◽  
Vol 29 (12) ◽  
Author(s):  
Yuan‐Hung Lin ◽  
Yen‐Sheng Chen
Keyword(s):  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Multiple Input Multiple Output ◽  
Estimation Model ◽  
Specific Absorption ◽  
Fast Estimation ◽  
Multiple Input ◽  
Input Multiple Output

scholarly journals Conformal Quad-Port UWB MIMO Antenna for Body-Worn Applications

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Thennarasi Govindan ◽  
Sandeep Kumar Palaniswamy ◽  
Malathi Kanagasabai ◽  
Sachin Kumar ◽  
Thipparaju Rama Rao ◽  
...  
Keyword(s):  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Ground Plane ◽  
Multiple Input Multiple Output ◽  
Unit Element ◽  
Impedance Bandwidth ◽  
Mimo Antenna ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Peak Gain

A conformal four-port multiple-input-multiple-output (MIMO) antenna operating at 2.4 GHz and ultrawideband (UWB) is presented for wearable applications. The unit element of the MIMO antenna is a simple rectangular monopole with an impedance bandwidth of 8.9 GHz (3.1–12 GHz). In the monopole radiator, stubs are introduced to achieve 2.4 GHz resonance. Also, a defect is introduced in the ground plane to reduce backside radiation. The efficiency of the proposed antenna is greater than 95%, and its peak gain is 3.1 dBi. The MIMO antenna has an isolation of >20 dB, and the estimated specific absorption rate (SAR) values for 1 gm of tissue are below 1.6 W/Kg. The size of the four-port MIMO antenna is 1.38λ0 × 0.08λ0 × 0.014λ0.

Variability of Specific Absorption Rate of Human Body for Various Configurations of Tablet Computer in Vicinity of Abdomen

2015 ◽  
Vol E98.B (7) ◽  
pp. 1173-1181 ◽  
Author(s):  
Akihiro TATENO ◽  
Tomoaki NAGAOKA ◽  
Kazuyuki SAITO ◽  
Soichi WATANABE ◽  
Masaharu TAKAHASHI ◽  
...  
Keyword(s):  
Human Body ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Tablet Computer ◽  
Specific Absorption
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