CN201522528U - Mid-frequency measuring box for RFID coil antenna - Google Patents
Mid-frequency measuring box for RFID coil antenna Download PDFInfo
- Publication number
- CN201522528U CN201522528U CN 200920211694 CN200920211694U CN201522528U CN 201522528 U CN201522528 U CN 201522528U CN 200920211694 CN200920211694 CN 200920211694 CN 200920211694 U CN200920211694 U CN 200920211694U CN 201522528 U CN201522528 U CN 201522528U
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- antenna
- measuring box
- rfid
- mid
- frequency
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Abstract
The utility model discloses a mid-frequency measuring box for an RFID (radio frequency identification) coil antenna. The measuring box comprises an antenna, an antenna baseplate, an SMA joint, metal wires and a housing, wherein a standard test coil antenna is arranged on the antenna baseplate with copper thin cloth wires and used to measure the mid-frequency of an external antenna, the antenna baseplate is fixed inside the housing, two contact points of the antenna are connected with an SMA reverse polar male connector joint through metal wires, the SMA reverse polar male connector joint and the metal wires are used for transmitting the electrical signals, and when the mid-frequency measuring box of the RFID antenna is used in combination with a vector network analyzer, the mid-frequency of the tested antenna can be measured by adopting the test mode of S11. The measuring box has the advantages of simple structure, low cost and easy operation.
Description
Technical field
The present invention relates to the checkout equipment field, relate in particular to a kind of coil antenna centre frequency measuring box of RFID radio-frequency (RF) identification.
Background technology
Along with the RFID REID extensively adopts, the major issue that the performance of RFID rfid device Antenna Design has become the slip-stick artist to pay close attention to.And the centre frequency of antenna is very big to performance impact, the measurement of centre frequency has been become a necessary Consideration of Antenna Design.At present a lot of slip-stick artists be the special measurement equipment of judging or buy costliness with sensation and experience, design the RFID RFID antenna, and measurement is not accurate enough or expensive like this.Simple and easy RFID RFID antenna centre frequency measuring box is exactly at this problem, has effectively solved RFID radio-frequency (RF) identification PRODUCT DEVELOPMENT ENGINEER and in Antenna Design centre frequency has been judged problem inaccurate or that development cost are high.
Summary of the invention
The problem that is difficult to accurately measure the center of antenna frequency in the process at existing RFID RFID antenna exploitation debugging, the object of the invention is: use RFID RFID antenna centre frequency measuring box, realize accurate measurement, solve RFID RFID antenna Developmental Engineer's practical difficulty.
A kind of coil antenna centre frequency measuring box of RFID radio-frequency (RF) identification comprises antenna, antenna substrate, sub-miniature A connector, plain conductor, shell.Described standard testing coil antenna is arranged on the antenna substrate with the thin wiring of copper, be used to measure the centre frequency of exterior antenna, antenna substrate is fixed on enclosure, two contacts of antenna couple together by plain conductor and the anti-level of SMA property male joint, SMA anti-level property male joint and plain conductor are used for the transmission of electric signal, when RFID RFID antenna centre frequency measuring box and vector network analyzer are used together, adopt the mode of operation of S11, can measure the centre frequency of tested antenna.The cost that this apparatus structure is simple, cheap, operation easily, mix existing general purpose test equipment (comprehensive tester or electric impedance analyzer), realization is to the accurate measurement of RFID coil antenna centre frequency, brings accurately reference data and make things convenient for environment for use in RFID developer's design and debugging RFID antenna.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 measures tested antenna synoptic diagram for the utility model.
The number in the figure explanation
1-antenna 2-plain conductor 3-antenna substrate
4-shell 5-SMA joint
Embodiment
How further specify the present invention below in conjunction with accompanying drawing realizes:
As shown in Figure 1, RFID RFID antenna centre frequency measuring box is made up of standard testing coil antenna, antenna substrate, the anti-level of SMA property male joint, plain conductor, five parts of shell.Standard testing coil antenna 1 is made by Copper Foil, is attached on the antenna substrate 3 shape conformance with standard ISO10373-6 standard.Antenna substrate is made by common printed circuit board (PCB) non electrically conductive materials such as (perhaps cardboards), is used to carry the standard testing coil antenna.Antenna substrate is fixed on shell 4 inside, two contacts of antenna is coupled together by plain conductor 2 and the anti-level of SMA property male joint 5 again, constitutes an integral body.Externally by the anti-level of SMA property male joint and vector network analyzer common apparatus such as (perhaps) electric impedance analyzers as shown in Figure 2 mode be connected, so just constitute one and overlap complete RFID RFID antenna centre frequency measuring system.When in use, vector network analyzer need be arranged to the mode of operation of S11 and time delay, and tested antenna is placed on the RFID RFID antenna centre frequency measuring box, can obtain the center frequency value of tested antenna.It is quick to be easy to use, the data that obtain accurately and reliably, RFID RFID antenna centre frequency measuring box with low cost, therefore this measurement mechanism has satisfied users' actual needs.
Claims (2)
1. the coil antenna centre frequency measuring box of a radio-frequency (RF) identification, comprise antenna, antenna substrate, sub-miniature A connector, plain conductor, shell, it is characterized in that: described standard testing coil antenna is arranged on the antenna substrate and connects up with copper is thin, and antenna substrate is fixed on enclosure.
2. the coil antenna centre frequency measuring box of a kind of radio-frequency (RF) identification according to claim 1, it is characterized in that: two contacts of described antenna are connected with the anti-level of SMA property male joint by plain conductor, and SMA anti-level property male joint and plain conductor are used for the transmission of electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920211694 CN201522528U (en) | 2009-11-02 | 2009-11-02 | Mid-frequency measuring box for RFID coil antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920211694 CN201522528U (en) | 2009-11-02 | 2009-11-02 | Mid-frequency measuring box for RFID coil antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201522528U true CN201522528U (en) | 2010-07-07 |
Family
ID=42508706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920211694 Expired - Lifetime CN201522528U (en) | 2009-11-02 | 2009-11-02 | Mid-frequency measuring box for RFID coil antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201522528U (en) |
-
2009
- 2009-11-02 CN CN 200920211694 patent/CN201522528U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 200233, No. 401, building 1, building No. 1, Caobao Road, Shanghai, Xuhui District Patentee after: SHANGHAI LONGCHEER TECHNOLOGY CO., LTD. Address before: Xuhui District Caohejing New Technology Development Zone of Shanghai City, No. 401 Caobao Road 200233 Patentee before: Longcheer Technology (Shanghai) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |