A Wideband Spiral Antenna for Ingestible Capsule Endoscope Systems: Experimental Results in a Human Phantom and a Pig

被引：117

作者：

Lee, Sang Heun ^{[1
]}

Lee, Jaebok ^{[1
]}

Yoon, Young Joong ^{[1
]}

Park, Sangbok ^{[2
]}

Cheon, Changyul ^{[2
]}

Kim, Kihyun ^{[3
,4
]}

Nam, Sangwook ^{[3
,4
]}

机构：

[1] Yonsei Univ, Microwave & Antenna Lab, Sch Elect & Elect Engn, Seoul 120749, South Korea

[2] Univ Seoul, Dept Elect & Comp Engn, Seoul 130743, South Korea

[3] Seoul Natl Univ, Appl Electromagnet Lab, Sch Elect Engn, Seoul 151742, South Korea

[4] Seoul Natl Univ, Inst New Media & Commun, Seoul 151742, South Korea

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 2011年 / 58卷 / 06期

关键词：

Biotelemetry; capsule endoscope; endoscopic capsule images; human phantom; wideband spiral antenna;

D O I：

10.1109/TBME.2011.2112659

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This paper presents the design of a wideband spiral antenna for ingestible capsule endoscope systems and a comparison between the experimental results in a human phantom and a pig under general anesthesia. As wireless capsule endoscope systems transmit real-time internal biological image data at a high resolution to external receivers and because they operate in the human body, a small wideband antenna is required. To incorporate these properties, a thick-arm spiral structure is applied to the designed antenna. To make practical and efficient use of antennas inside the human body, which is composed of a high dielectric and lossy material, the resonance characteristics and radiation patterns were evaluated through a measurement setup using a liquid human phantom. The total height of the designed antenna is 5 mm and the diameter is 10 mm. The fractional bandwidth of the fabricated antenna is about 21% with a voltage standing-wave ratio of less than 2, and it has an isotropic radiation pattern. These characteristics are suitable for wideband capsule endoscope systems. Moreover, the received power level was measured using the proposed antenna, a circular polarized receiver antenna, and a pig under general anesthesia. Finally, endoscopic capsule images in the stomach and large intestine were captured using an on-off keying transceiver system.

引用

页码：1734 / 1741

页数：8

共 23 条

[1] Miniature transmitter for implantable micro systems [J].

Ahmadian, M ;

Flynn, BW ;

Murray, AF ;

Cumming, DRS .

PROCEEDINGS OF THE 25TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-4: A NEW BEGINNING FOR HUMAN HEALTH, 2003, 25 :3028-3031

[2]

Balanis ConstantineA., 2010, Antenna Theory, VThird

[3] Controlled navigation of endoscopic capsules: Concept and preliminary experimental investigations [J].

Carpi, Federico ;

Galbiati, Stefano ;

Carpi, Angelo .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2007, 54 (11) :2028-2036

[4] Low-power transceiver analog front-end circuits for bidirectional high data rate wireless telemetry in medical endoscopy applications [J].

Chi, Baoyong ;

Yao, Jinke ;

Han, Shuguang ;

Xie, Xiang ;

Li, Guolin ;

Wang, Zhihua .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2007, 54 (07) :1291-1299

[5] Electromagnetic radiation from ingested sources in the human intestine between 150 MHz and 1.2 GHz [J].

Chirwa, LC ;

Hammond, PA ;

Roy, S ;

Cumming, DRS .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2003, 50 (04) :484-492

[6] Automated topographic segmentation and transit time estimation in endoscopic capsule exams [J].

Cunha, J. P. Silva ;

Coimbra, A. ;

Campos, P. ;

Soares, J. M. .

IEEE TRANSACTIONS ON MEDICAL IMAGING, 2008, 27 (01) :19-27

[7]

Glukhovsky A., 2003, Sensor Review, V23, P128, DOI 10.1108/02602280310468233

[8] Characteristics of Cavity Slot Antenna for Body-Area Networks [J].

Haga, Nozomi ;

Saito, Kazuyuki ;

Takahashi, Masaharu ;

Ito, Koichi .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2009, 57 (04) :837-843

[9] Wireless capsule endoscopy [J].

Iddan, G ;

Meron, G ;

Glukhovsky, A ;

Swain, P .

NATURE, 2000, 405 (6785) :417-417

[10] A 2.6mW 2fps QVGA CMOS one-chip wireless camera with digital image transmission function for capsule endoscopes [J].

Itoh, Shinya ;

Kawahito, Shoji ;

Terakawa, Susumu .

2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, PROCEEDINGS, 2006, :3353-3356

← 1 2 3 →