A wireless IC device includes a wireless IC chip arranged to process a radio signal, a power-supply circuit board that is connected to the wireless IC chip and that includes a power supply circuit including at least one coil pattern, and a radiation plate arranged to radiate a transmission signal supplied from the power-supply circuit board and/or receiving a reception signal to supply the reception signal to the power-supply circuit board. The radiation plate includes an opening provided in a portion thereof and a slit connected to the opening. When viewed in plan from the direction of the winding axis of the coil pattern, the opening in the radiation plate overlaps with an inner area of the coil pattern and the area of the inner area is approximately the same as that of opening.

Wireless IC device

Microstrip patch antenna (46), feed structure (48), and matching circuit (50) designs for an RFBD tag (10). A balanced feed design using balanced feeds coupled by a shorting stub (56) to create a virtual short between the two feeds so as to eliminate the need for physically connecting the substrate to the ground plane. A dual feed structure design using a four-terminal IC can be connected to two antennas (46a,46b) resonating at different frequencies so as to provide directional and polarization diversity. A combined near-field/far-field design using a microstrip antenna providing electromagnetic coupling for far-field operation, and a looping matching circuit providing inductive coupling for near-field operation. A dual-antenna design using first and second microstrip antennas providing directional diversity when affixed to a cylindrical or conical object, and a protective superstrate (66). An annular antenna (46c) design for application to the top of a metal cylinder around a stem.

Microstrip antenna for rfid device

Purpose – Although the increase in point-of-purchase decisions heightens the communication potential of food product packaging, empirical research on understanding how visual packaging affects consumers' subsequent product and brand evaluations and perceptions is scant. This study seeks to develop a theoretical model to show the effects of consumer attitudes toward visual food packaging on perceived product quality, product value, and brand preference. Design/methodology/approach – A self-administered questionnaire developed from the literature was conducted, and 315 undergraduate students participated in the study. Findings – The empirical results show that attitudes toward visual packaging directly influence consumer-perceived food product quality and brand preference. Perceived food product quality also directly and indirectly (through product value) affects brand preference. Originality/value – This paper offers directions for understanding the effects of visual packaging on positive consumer product ...

The influence of visual packaging design on perceived food product quality, value, and brand preference

Techniques for providing eyewear with electrical components are disclosed. The electrical components can provide electrical technology to eyewear (e.g., eyeglasses) without having to substantially compromise aesthetic design principles of the eyewear. Often, the electrical components can be attached to the eyewear as an after-market enhancement. The electrical components can operate independently or together with other electrical components provided elsewhere.

Eyewear supporting after-market electrical components

Purpose – To offer an outline of the characteristics of radio frequency identification technology (RFID) and discuss its perceived benefits, impacts and challenges, as they apply to retailers in the UK. The paper draws together a range of information and intelligence about the application of RFID and reflects on the strategic planning challenges it poses to retailers.Design/methodology/approach – The paper draws its material largely from trade and practitioner sources and illustrates general themes with specific retail examples.Findings – The paper suggests that RFID has the potential to deliver a wide range of benefits throughout the supply chain, including tighter management and control, reduction in shrinkage, reduced labour costs and improved customer service. However, retail users will have to address a number of operational and strategic challenges and consumer privacy concerns before these benefits can be fully realised. The adoption of RFID may further increase structural concentration within the ...

The benefits, challenges and impacts of radio frequency identification technology (RFID) for retailers in the UK

A RFID tag or label comprises a RFID tag module (comprising an electronic identification circuit and a coupling means) and an antenna structure coupled to the coupling means. The RFID tag module is separate from, separable or arranged to be severable from, the antenna structure. The tag module can be placed in or on an object and the antenna structure in or on packaging material for use with the object. A patch antenna type RFID tag antenna structure has a ground plane spaced from the patch antenna so as to increase the range of the tag. The ground plane is not substantially larger than, and electrically insulated from, the patch antenna. The ground plane is flexible, so the RFID tag structure can be worn by a human, and can be incorporated into a piece of clothing. A RFID antenna structure for use with a tag reader is made flat and robust so that it can be mounted on the ground to be walked upon or driven over. A bi-directional YAGI type RFID tag antenna structure has director elements on two opposite sides so that the YAGI antenna radiates in two opposite directions. An object includes a gain increasing metallic structure for increasing the gain of a RFID tag when placed near the object so as to form a RFID tag antenna structure.

Christopher Gordon Gervase Turner

Papers

Radio frequency identification tagging