Dual band- dual polarized planar inverted F-antenna for MBAN applications

AbstractA planar inverted F-Antenna with the dual band-dual polarization property is presented for medical body area networks applications. The designed antenna covers the 2.45 GHz industrial, scientific and medical, 4 G long term evolution (2.5–2.69 GHz) bands for ON body communication and Wi-Fi and WLAN (3.5–3.6 GHz) bands for OFF body communication. At the lower band, an equivalent offset fed magnetic microstrip type dipole has been utilized that generate field parallel to the surface of the body for supporting ON body communication. The broadside radiation pattern has been realized using the slotted patch counterpart for supporting OFF body communication. This technique has resulted in a design of dual band dual mode property using a single radiator. The footprint of the antenna is only 0.35λg× 0.17λg× 0.08λg. Owing to its compactness, lightweight, and easy mountable property (due to foam substrate), the proposed antenna is found to be robust for MBAN applications. The maximum permissible transmitted power for the 1st band is 25.78 and 20.3 dBm for the 2nd one to maintain standard specific absorption rate limitations of 1.6 W/Kg. Experimental investigations over human body showed minimal deviations from the free space conditions which makes it a potential candidate for body-centric communications.

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Dual-band all textile antenna with AMC for heartbeat monitor and pacemaker control applications

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078721001604 ◽

2021 ◽

pp. 1-16

Author(s):

Farah R. Kareem ◽

Mohamed El Atrash ◽

Ahmed A. Ibrahim ◽

Mahmoud A. Abdalla

Keyword(s):

Indoor Environment ◽

Specific Absorption Rate ◽

The Body ◽

Dual Band ◽

Magnetic Conductor ◽

Control Applications ◽

High Agreement ◽

Low Profile ◽

Textile Antenna ◽

Wearable Medical

Abstract All textile integrated dual-band monopole antenna with an artificial magnetic conductor (AMC) is proposed. The proposed design operates at 2.4 and 5.8 GHz for wearable medical applications to monitor the heartbeat. A flexible and low-profile E- shaped CPW dual-band textile antenna is integrated with a 4 × 4 dual-band textile AMC reflector to enhance the gain and specific absorption rate (SAR). The SAR is reduced by nearly 95% at both 1 and 10 g. The design was measured on the body with a 2 mm separation. The simulated and measured results appear in high agreement in the case of with and without AMC array integration. The measurement was performed in the indoor environment and in an anechoic chamber to validate the design based on reflection coefficient and radiation pattern measurements.

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LOW SPECIFIC ABSORPTION RATE ANTENNA USING ELECTROMAGNETIC BAND GAP STRUCTURE FOR LONG TERM EVOLUTION BAND 3 APPLICATION

Progress In Electromagnetics Research M ◽

10.2528/pierm18102103 ◽

2019 ◽

Vol 80 ◽

pp. 23-34

Author(s):

Mahesh Munde ◽

Anil Nandgaonkar ◽

Shankar Deosarkar

Keyword(s):

Band Gap ◽

Absorption Rate ◽

Specific Absorption Rate ◽

Long Term Evolution ◽

Band 3 ◽

Electromagnetic Band Gap ◽

Specific Absorption ◽

Term Evolution ◽

Band Gap Structure

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Link Quality Improvement of Long-Term Evolution and 802.11ax in High-Density Areas

Wireless Communications and Mobile Computing ◽

10.1155/2020/8817246 ◽

2020 ◽

Vol 2020 ◽

pp. 1-28

Author(s):

Mina Malekzadeh

Keyword(s):

Network Architecture ◽

High Efficiency ◽

Long Term Evolution ◽

Quality Parameters ◽

High Density ◽

Link Quality ◽

Dual Band ◽

Architecture Model ◽

Term Evolution

The 802.11ax high-efficiency wireless (HEW) particularly designed for high-density areas. However, dense areas have specific requirements that demand precise deployment strategies by network developers. In dense networks, a large number of users are simultaneously connected to the same channel; hence, the available bandwidth is divided among the users in such a way that joining more users can eventually saturate the network. Furthermore, in dense areas, a large number of closely spaced users are transmitting data at the same time. In such a heavily frequency interfered environment, the wireless link quality extremely degrades, which can practically render the network unavailable. Thereby, it is essential to determine the appropriate deployment options regarding the specific networks’ settings and configurations. Hence, this work proposes a network architecture model to determine the dual-band HEW performance in dense deployments. The model additionally includes long-term evolution (LTE) as the cellular alternative for high-density areas which is utilized by the model as the reference point for corresponding comparison purposes with HEW. The model is implemented, and link quality parameters are measured based on different aspects of the deployment options. To further validate the model and determine the optimization levels provided by the options, the simulation and analytical results are compared.

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