Journal: IEEE Transactions on Antennas and Propagation

Abbreviation

IEEE trans. antennas propag.

Publisher

IEEE

Journal Volumes

ISSN

0018-926X
1558-2221

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Publications 1 - 10 of 33
  • Finite-volume time-domain analysis of a cavity-backed Archimedean spiral antenna
    Item type: Journal Article
    Fumeaux, C.; Baumann, D.; Vahldieck, Rüdiger (2006)
    IEEE Transactions on Antennas and Propagation
  • Comparison of the Radiation Efficiency for the Dielectric Resonator Antenna and the Microstrip Antenna at Ka Band
    Item type: Journal Article
    Lai, Qinghua; Almpanis, Georgios; Fumeaux, Christophe; et al. (2008)
    IEEE Transactions on Antennas and Propagation
  • Comprehensive analysis and simulation of a 1-18 GHz broadband parabolic reflector horn antenna system
    Item type: Journal Article
    Bruns, Christian; Leuchtmann, Pascal; Vahldieck, Rüdiger (2003)
    IEEE Transactions on Antennas and Propagation
  • A Millimeter-Wave Dual-Feed Square Loop Antenna for 5G Communications
    Item type: Journal Article
    Li, Sensen; Chi, Taiyun; Wang, Yanjie; et al. (2017)
    IEEE Transactions on Antennas and Propagation
    A millimeter-wave (mm-Wave) dual-feed square loop antenna is presented in this paper for 5G communications. It synthesizes identical far-field radiation patterns as a conventional single-feed square loop antenna. The dual-feed antenna (DFA) also simplifies or even eliminates the lossy power-combining network between the transmitter and antenna, achieving direct on-antenna power combining. The proposed antenna concept significantly improves the total radiated power and power efficiency of a wireless transmitter, particularly useful for 5G transmitters that normally require large output power to compensate the high mm-Wave path loss. Compared with antenna-array-based spatial power combining, the DFA only requires a single-antenna footprint and maintains the single-element beamwidth, ideal for mobile 5G communications. The dual-feed square loop antenna is designed and characterized at two potential 5G bands, i.e., 38.5 and 73.5 GHz. Conventional single-feed square loop antennas are implemented as reference designs. Closely matched antenna characteristics are achieved in measurement between the proposed DFA and conventional single-feed antenna. The dual-feed square loop antenna has measured broadside gain of 2.9 and 3 dBi, and fractional bandwidth of 13% and 14%, at 38.5 and 73.5 GHz, respectively. High-speed modulation test is also performed. A 4.3% error vector magnitude (EVM) with a -33.2-dBc adjacent channel leakage ratio (ACLR) for 6-Gb/s 64QAM is achieved at 38.5 GHz, and a 5.6% EVM with a -33.4-dBc ACLR for 6-Gb/s 64QAM is measured at 73.5 GHz, which demonstrates the viability of the proposed DFA for high-speed and complex modulations required by 5G communications.
  • Design of re-active parasitic elements in electronic beam steering arrays
    Item type: Journal Article
    Schaer, Beat; Rambabu, K.; Bornemann, Jens; et al. (2005)
    IEEE Transactions on Antennas and Propagation
    A new approach for the design of electronic beam steering arrays with reactive parasitic elements is introduced. The method is demonstrated at the example of a circular array formed by capacitively tuned monopoles. The related capacitances are determined straightforwardly and without any need for optimization techniques. The resulting beams are rotatable and maintain their gain and beamwidth within tight margins. Comparisons with NEC2 verify the pattern calculation.
  • Miniaturized Quad-Band Implantable Antenna for Wireless Capsule Endoscopy and Deep Tissue Monitoring Applications
    Item type: Journal Article
    Nasir, Jamal; Zada, Muhammad; Shah, Syed Manaf Ali; et al. (2025)
    IEEE Transactions on Antennas and Propagation
    Miniaturized multiband antennas are essential components of implantable biomedical devices (IMDs), enabling them to perform multiple tasks simultaneously in different biomedical applications. This study proposes a highly miniaturized implantable antenna with quad-band characteristics. The implantable antenna’s volume is 6×6×0.6 mm. The proposed antenna operates in the Medical Implant Communication System (MICS) band (401–406 MHz), Wireless Medical Telemetry Service (WMTS) (1427–1432 MHz), and industrial, scientific, and medical (ISM) bands (433.1–434.8 MHz, 902–928 MHz, and 2400–2483.5 MHz) for multitasking, such as data telemetry, wireless power transfer, and control signaling. This design achieves miniaturization using meandered lines, eliminating the need for shortening vias or ground plane slots, typically employed in implantable antennas for size reduction. This arrangement simplifies the structure and minimizes back radiation, enhancing overall performance. The proposed antenna was thoroughly analyzed through simulations integrated into a wireless capsule endoscopy (WCE) device. A fabricated prototype embedded in minced pork was experimentally validated, demonstrating excellent agreement with the simulated parameters. The presented antenna exhibits a measured −10 dB bandwidth of 76.8, 72, 125, and 215.4 MHz at 402/433, 915, 1410, and 2450 MHz, respectively. Furthermore, it maintains stable measured gains of −44.7, −34, −30.6, and −29.7 dBi across the respective bands of interest. Specific absorption rates (SARs) in heterogeneous stomach tissues were evaluated at the four resonance frequencies to ensure human safety, showing compliance with the IEEE standards. Furthermore, to evaluate the range of effective communication, a link budget analysis was performed at data rates of 1, 12, and 78 Mb/s, demonstrating a minimum effective transmission range of 4.7 m. These features make the proposed miniaturized implantable antenna suitable for various biomedical applications.
  • 60 GHz Aperture-Coupled Dielectric Resonator Antennas Fed by a Half-Mode Substrate Integrated Waveguide
    Item type: Journal Article
    Lai, Qinghua; Fumeaux, Christophe; Hong, Wei; et al. (2010)
    IEEE Transactions on Antennas and Propagation
  • A new 3-D conformal PEC FDTD scheme with user-defined geometric precision and derived stability criterion
    Item type: Journal Article
    Benkler, S.; Chavannes, N.; Kuster, N. (2006)
    IEEE Transactions on Antennas and Propagation
  • Novel small-size directional antenna for UWBWBAN/WPAN applications
    Item type: Journal Article
    Klemm, Maciej; Kovács, István Z.; Pedersen, Gert F.; et al. (2005)
    IEEE Transactions on Antennas and Propagation
  • A Low-Multipath Wideband GPS Antenna With Cutoff or Non-Cutoff Corrugated Ground Plane
    Item type: Journal Article
    Scire-Scappuzzo, Francesca; Makarov, Sergey N. (2009)
    IEEE Transactions on Antennas and Propagation
Publications 1 - 10 of 33