CN103746166B - The 928MHz radio frequency module of plate load PCB antenna - Google Patents
The 928MHz radio frequency module of plate load PCB antenna Download PDFInfo
- Publication number
- CN103746166B CN103746166B CN201310737095.0A CN201310737095A CN103746166B CN 103746166 B CN103746166 B CN 103746166B CN 201310737095 A CN201310737095 A CN 201310737095A CN 103746166 B CN103746166 B CN 103746166B
- Authority
- CN
- China
- Prior art keywords
- antenna
- crescent
- tinsel
- pcb
- radio frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Aerials With Secondary Devices (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of PCB, particularly relate to the 928MHz radio frequency module of a kind of plate load PCB antenna. The 928MHz radio frequency module of the plate load PCB antenna of the present invention, comprise PCB substrate, PCB substrate is provided with RF receiving and transmission module, balance-imbalance circuit, antenna, gain of antenna module, RF receiving and transmission module passes through balance-uneven circuit and gain of antenna model calling, gain of antenna model calling antenna. The radio frequency antenna module of the pcb board load 928MHz of the present invention, changes number of unit, it is achieved different gains, this antenna has the features such as efficiency height, stable and reliable for performance, cost is low.
Description
Technical field
The present invention relates to a kind of PCB, particularly relate to the 928MHz radio frequency module of a kind of plate load PCB antenna.
Background technology
PCB(PrintedCircuitBoard, printed circuit board (PCB)) effect generally comprises: 1. the mechanical support that the various electronic devices and components such as unicircuit are fixed, assembled is provided; 2. realize the wiring between the various electronic devices and components such as unicircuit and electrical connection (Signal transmissions) or electrical isolation. Electrical specification required by offer, such as natural impedance etc.
Antenna is a kind of transducer. During transmitting, it is converted into space hertzian wave the high-frequency current of emitter; During reception, it is converted to high-frequency current the hertzian wave intercepted and captured from space again and sends into receiving apparatus. Small power, short-distance wireless transmitting-receiving equipment design one being applied to wireless sense network or active RFID type, antenna design is integral part wherein. Good antenna system can make communication distance reach optimum regime. The kind of antenna is a lot, and in the radio frequency system lower than 1GHz frequency, conventional antenna kind comprises spring antenna, bar-shaped antenna, directive antenna, Yagi array and PCB antenna etc. Adopt now PCB printing plate (printed circuit board (PCB)) as in radiative unit structure, it adopts solid flush type oscillator arms, there is following problem: gain is on the low side, bandwidth is partially narrow, section is higher, third order intermodulation index is undesirable, these problems cause the communication quality serving in district to can not get ensureing.
The leading indicator weighing performance of antenna is antenna directivity parameter and gain of antenna parameter, wherein: directivity parameter represents different antennas different directional patterns, for representing the degree of their concentrated radiations, the sharp-pointed degree of directional pattern, our incoming direction parameter. Desirable some source antenna radiation does not have directivity, and in all directions, yield of radiation is equal, and direction is a spheroid. We compare using desirable some source antenna as standard and actual antennas, and the ratio at square E02 of the strength of electric field that identical radiation power antenna results from the strength of electric field square E2 of certain point and desirable some source antenna produces in same point is called the directivity parameter D=E2/E02 of this point.
Gain of antenna: gain and space factor are both the parameter characterizing radiation power intensity, but both are not quite similar again.Gain is discussed when same output rating, and space factor is discussed when same radiation power. Owing to the yield of radiation of antenna all directions is inequal, space factor and the gain of antenna change along with the difference of view-point, but its variation tendency is consistent. Generally, in actual applications, the space factor in greatest irradiation direction and gain is got as the space factor of antenna and gain.
In small power, short-range wireless sense network system or active RFID system, because the volume of product is little, need the antenna design that an individual system is little, cheap, communication distance is far away as far as possible, in above-mentioned antenna kind, volume is little, cost of manufacture is low for PCB antenna, but communication distance is generally less than other antenna.
Summary of the invention
The technique effect of the present invention can overcome above-mentioned defect, it is provided that the 928MHz radio frequency module of a kind of plate load PCB antenna, it effectively increases gain of antenna, it is to increase radio frequency module is in wireless sense network and the distance that communicates in active RFID system.
For achieving the above object, the present invention adopts following technical scheme: it comprises PCB substrate, PCB substrate is provided with RF receiving and transmission module, balance-imbalance circuit, antenna, gain of antenna module, RF receiving and transmission module passes through balance-uneven circuit and gain of antenna model calling, gain of antenna model calling antenna.
Balance-uneven circuit (is again Ba Lun Balun, it is the English transliteration of balance-imbalance converter), principle is daily lineation opinion, doublet antenna belongs to balanced type antenna, and concentric cable belongs to uneven transmission now, if it is directly connected, then the crust of concentric cable just has high-frequency current to flow through (by co-axial cables transport principle, high-frequency current should in cable internal flow, crust is screen layer, it is there is no electric current), so, the radiation (screen layer that can be imagined as cable also take part in the radiation of electric wave) that will affect antenna is therefore, balun will be added between antenna and cable, the electric current flowing into cable shield outside is controlled to fall, that is the high-frequency current flowing through cable shield crust from oscillator is blocked.
Preferably, gain of antenna module is crescent tinsel, and crescent tinsel copper content is greater than 90%.
The method of calculation of wavelength: frequency=velocity of wave/wavelength, velocity of wave is the light velocity: 300000000m/s, and frequency is 928MHz, then wavelength equals 0.3232 meter.
The outer arc radius of crescent tinsel is 0.505cm, and the angle between outer arc two-end-point is 31.0 ��, and the inner arc radius of crescent tinsel is 1.29cm, and the maximum gauge between outer arc and inner arc is 0.05cm.
It it is 15.5 �� through the radius extended line at crescent tinsel Wai Hu center and the angle between the radius extended line at crescent tinsel inner arc center.
The outer cambered surface of crescent tinsel protrudes from PCB substrate plane and is perpendicular to PCB substrate plane; The inner arc of crescent tinsel is attached in PCB substrate plane. The bottom surface of crescent tinsel is laid in PCB substrate, protrudes from PCB substrate and round and smooth transition between another side inner arc and outer arc.
Described RF receiving and transmission module adopts TICC1101 model.
The radio frequency antenna module of the pcb board load 928MHz of the present invention, changes number of unit, it is achieved different gains, this antenna has the features such as efficiency height, stable and reliable for performance, cost is low. By increasing the assembly of a low cost, effectively increase gain of antenna, it is to increase radio frequency module is in wireless sense network and the distance that communicates in active RFID system.Effectively improve the property symmetrically in the direction, far field of PCB antenna, and possess the parameter adjustment walking line by adding sense from coupled zone and obtain the adjustment capability to antenna frequencies, size, gain, direction, thus it is suitable for the layout requirement that portable terminal equipment is changeable to built-in antenna complex better.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of the present invention;
Fig. 2 is the gain modular structure schematic diagram of the present invention.
In figure: 1-crescent tinsel; 2-inner arc; The outer arc of 3-.
Embodiment
As shown in Figure 1, the radio frequency antenna module of the pcb board load 928MHz of the present invention comprises PCB substrate, PCB substrate is provided with RF receiving and transmission module, balance-imbalance circuit, antenna, gain of antenna module, RF receiving and transmission module passes through balance-uneven circuit and gain of antenna model calling, gain of antenna model calling antenna.
As shown in Figure 2, gain of antenna module is crescent tinsel 1, and its copper content is greater than 90%.
The outer arc radius of crescent tinsel is 0.505cm, and the angle between outer arc two-end-point is 31.0 ��, and the inner arc radius of crescent tinsel is 1.29cm, and the maximum gauge between outer arc and inner arc is 0.05cm.
Radius extended line through crescent tinsel 1 Wai Hu center and the angle between the radius extended line at crescent tinsel inner arc center are 15.5 ��.
The outer cambered surface of crescent tinsel 1 protrudes from PCB substrate plane and is perpendicular to PCB substrate plane; The inner arc of crescent tinsel 1 is attached in PCB substrate plane. The bottom surface of crescent tinsel 1 is laid in PCB substrate, protrudes from PCB substrate and round and smooth transition between another side inner arc 2 and outer arc 3.
Described RF receiving and transmission module adopts TICC1101 model.
Embodiment 1
In storage active RFID recognition system, each warehouse is generally divided into goods to stack district and passageway, fork truck can be allowed in passageway to pass through, and the radio frequency module that fork truck is installed can carry a radio frequency module communication with extension on every part goods, it is achieved quick counting and the function looking for goods; Before not implementing the present invention, radio frequency module on fork truck in passageway can only with 20m within the extension radio frequency module communication that is loaded on goods, after adopting the technical scheme of the present invention, owing to gain of antenna increases, effectively add communication distance, the radio frequency module installed on fork truck can communicate with the module within 30m, makes this system can adapt to bigger and higher warehouse.
Embodiment 2
Locate in RFID identification system at campus student, student wears the school badge comprising radio frequency module, fixing radio frequency module is installed in campus context, by the communication between 2 modules, the residing position of student can be determined, before not implementing the present invention, need a radio frequency module is installed at the every 50m of corridor, after the technical scheme implementing the present invention, due to the gain of antenna increase of the school badge comprising radio frequency module that student wears, can communicate with farther stuck-module, therefore only need 75m to increase in corridor and a radio frequency module is installed, effectively reduce cost.
Claims (3)
1. the 928MHz radio frequency module of a plate load PCB antenna, comprise PCB substrate, it is characterized in that, PCB substrate is provided with RF receiving and transmission module, balance-imbalance circuit, antenna, gain of antenna module, RF receiving and transmission module passes through balance-uneven circuit and gain of antenna model calling, gain of antenna model calling antenna; Gain of antenna module is crescent tinsel (1), the outer arc radius of crescent tinsel (1) is 0.505cm, angle between outer arc two-end-point is 31.0 ��, and the inner arc radius of crescent tinsel is 1.29cm, and the maximum gauge between outer arc and inner arc is 0.05cm;It it is 15.5 �� through the radius extended line at crescent tinsel Wai Hu center and the angle between the radius extended line at crescent tinsel inner arc center; The outer cambered surface of crescent tinsel (1) protrudes from PCB substrate plane and is perpendicular to PCB substrate plane; The inner arc of crescent tinsel (1) is attached in PCB substrate plane; The bottom surface of crescent tinsel (1) is laid in PCB substrate, protrudes from PCB substrate and round and smooth transition between another side inner arc (2) and outer arc (3).
2. the 928MHz radio frequency module of plate according to claim 1 load PCB antenna, it is characterised in that, crescent tinsel (1) copper content is greater than 90%.
3. the 928MHz radio frequency module of plate according to claim 1 load PCB antenna, it is characterised in that, RF receiving and transmission module adopts TICC1101 model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737095.0A CN103746166B (en) | 2013-12-27 | 2013-12-27 | The 928MHz radio frequency module of plate load PCB antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737095.0A CN103746166B (en) | 2013-12-27 | 2013-12-27 | The 928MHz radio frequency module of plate load PCB antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103746166A CN103746166A (en) | 2014-04-23 |
| CN103746166B true CN103746166B (en) | 2016-06-08 |
Family
ID=50503171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310737095.0A Active CN103746166B (en) | 2013-12-27 | 2013-12-27 | The 928MHz radio frequency module of plate load PCB antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103746166B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369120A (en) * | 1999-02-10 | 2002-09-11 | 奥根公司 | Antenna device and radio communication device including antenna device |
| CN201163660Y (en) * | 2008-02-22 | 2008-12-10 | 深圳市远望谷信息技术股份有限公司 | Integration antenna |
| CN203721874U (en) * | 2013-12-27 | 2014-07-16 | 青岛中科软件股份有限公司 | 928MHz radio frequency module used for onboard PCB antenna |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19857191A1 (en) * | 1998-12-11 | 2000-07-06 | Bosch Gmbh Robert | Half loop antenna |
| US6982609B1 (en) * | 2002-05-15 | 2006-01-03 | Zeevo | System method and apparatus for a three-line balun with power amplifier bias |
| WO2012072969A1 (en) * | 2010-11-29 | 2012-06-07 | The University Of Birmingham | Balanced antenna system |
-
2013
- 2013-12-27 CN CN201310737095.0A patent/CN103746166B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369120A (en) * | 1999-02-10 | 2002-09-11 | 奥根公司 | Antenna device and radio communication device including antenna device |
| CN201163660Y (en) * | 2008-02-22 | 2008-12-10 | 深圳市远望谷信息技术股份有限公司 | Integration antenna |
| CN203721874U (en) * | 2013-12-27 | 2014-07-16 | 青岛中科软件股份有限公司 | 928MHz radio frequency module used for onboard PCB antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103746166A (en) | 2014-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170117635A1 (en) | Techniques for designing millimeter wave printed dipole antennas | |
| CN201887148U (en) | High-performance broadband dual-frequency omnidirectional antenna | |
| US20110090131A1 (en) | Printed Dual-Band Yagi-Uda Antenna and Circular Polarization Antenna | |
| US20110309993A1 (en) | Small-size printed circuit board-printed meander line inverted-f antenna for radio frequency integrated circuits | |
| CN204333243U (en) | A kind of micro-strip antenna array | |
| CN102110905A (en) | Omnidirectional wideband high gain antenna | |
| CN203883123U (en) | Anti-multipath GPS measurement type antenna | |
| CN205406737U (en) | 5G omnidirectional antenna system | |
| CN110085966B (en) | Ground telemetering and remote control integrated antenna and platform | |
| CN104836024B (en) | Ku frequency range circular polarisation conelike beam antennas | |
| Bao et al. | Design and discussion of a broadband cross‐dipole with high isolation and low cross‐polarisation utilising strong mutual coupling | |
| CN104380527B (en) | Stacked loop antenna and the mobile terminal with the stacked loop antenna | |
| CN103943963B (en) | Based on the dual polarization slot antenna of SIW technology | |
| CN104752839A (en) | High-gain broadband coupling slat type micro-strip antenna | |
| CN209981457U (en) | Combined antenna and terminal equipment | |
| CN110829023B (en) | Antenna module and terminal | |
| CN103746166B (en) | The 928MHz radio frequency module of plate load PCB antenna | |
| CN203760675U (en) | Dual polarized slot antenna based on SIW technology | |
| CN201438502U (en) | Dual-frequency broadband double-dipole antenna | |
| CN203721874U (en) | 928MHz radio frequency module used for onboard PCB antenna | |
| CN202797270U (en) | S-wave band minimization omnidirectional broadband antenna | |
| CN103746174B (en) | Plate carries the 510MHz radio-frequency module of PCB antenna | |
| CN103746172B (en) | Plate carries the 855MHz radio-frequency module of PCB antenna | |
| CN104681969A (en) | Hybrid radiator antenna structure | |
| CN103746167A (en) | A 779MHz radiofrequency module of a board-mounted PCB antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181224 Address after: Room 307-B, Building 17, Qilu Culture Venture Base, Jinan High-tech Zone, Shandong Province, 250101 Patentee after: Shandong Zhongke Siping Software Co.,Ltd. Address before: 266071 software industrial base, 288 Ningxia Road, Shinan District, Qingdao, Shandong. Patentee before: Qingdao Zhongke Software Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230807 Address after: Room 310, Floor 3, Kechuang Building Complex, No. 586, Kebei West Ring Road, Keqiao Economic Development Zone, Shaoxing, Zhejiang Province, 312000 Patentee after: ZKS (SHAOXING) IOT IT CO.,LTD. Address before: Room 307-B, Building 17, Qilu Culture Venture Base, Jinan High-tech Zone, Shandong Province, 250101 Patentee before: Shandong Zhongke Siping Software Co.,Ltd. |