WO2009142031A1 - 2周波アンテナ - Google Patents
2周波アンテナ Download PDFInfo
- Publication number
- WO2009142031A1 WO2009142031A1 PCT/JP2009/051536 JP2009051536W WO2009142031A1 WO 2009142031 A1 WO2009142031 A1 WO 2009142031A1 JP 2009051536 W JP2009051536 W JP 2009051536W WO 2009142031 A1 WO2009142031 A1 WO 2009142031A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dbi
- gain
- frequency
- band
- mhz
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/32—Vertical arrangement of element
- H01Q9/36—Vertical arrangement of element with top loading
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/40—Element having extended radiating surface
Definitions
- the present invention relates to a small two-frequency antenna that operates at two frequencies.
- antennas are often installed outside the vehicle such as a roof panel. ing.
- the antenna height of the antenna protruding outside the vehicle is restricted due to legal regulations, a small antenna with a low attitude is required.
- two resonances can be obtained by providing a choke coil between antenna elements, or two independent antennas can be used. Two outputs of frequency were obtained, or two outputs of two frequencies were synthesized to obtain an output.
- an object of the present invention is to provide a dual frequency antenna that can operate in two different frequency bands without the need for a choke coil.
- a dual-frequency antenna includes a first element formed in a planar shape on one surface of an insulating substrate and a first element formed on the other surface of the substrate so as not to overlap the first element.
- Two elements a power supply means for supplying power to the lower end of the first element, and a through hole formed at the end of the power supply line led out from the second element and connected to the middle of the first element on one surface of the substrate.
- a slit is formed in a portion of the first element corresponding to the power supply line.
- the first element operates on the high frequency side of two different frequency bands
- the second element operates on the low frequency side
- the power supply line for supplying power to the second element is Since it functions as an inductance, a choke coil can be dispensed with. Further, if the first element and the second element are configured by a print pattern, matching can be made possible by the shape of the print pattern.
- FIG. 1 and 2 show the configuration of a dual-frequency antenna 1 that operates in two different frequency bands according to an embodiment of the present invention.
- FIG. 1 is a front view showing the configuration of the dual frequency antenna 1
- FIG. 2 is a rear view showing the configuration of the dual frequency antenna 1.
- the dual-frequency antenna 1 includes a first element 11 and a second element 21 formed as printed patterns on the front and back surfaces of an insulating printed board 10 such as a glass epoxy board.
- the printed circuit board 10 has an elongated rectangular shape having a height H and a width W, and is erected substantially vertically on a planar ground 14.
- the first element 11 is formed as a planar printed pattern having a width W and a length L1 from the lower end of the surface of the printed circuit board 10.
- the lower portion of the first element 11 is formed with a tapered portion 11b toward the lower end.
- the width is gradually narrowed to adjust the impedance.
- a slit 11a having a width S from the substantially center of the upper edge of the first element 11 is formed downward.
- the first element 11 is fed from the lower end, and a feeding point 13 is provided at the lower end.
- a through hole 12 that is electrically connected to the back surface is provided at substantially the center of the printed circuit board 10 at a position at a height L3 from the lower end of the printed circuit board 10 that serves as the feeding point 13.
- the second element 21 is formed as a planar printed pattern having a width W and a length L2 from the upper end of the back surface of the printed board 10, and both sides of the second element 21 are folded downward.
- the second element 21 is formed on the printed circuit board 10 that does not overlap the first element 11 formed on the surface of the printed circuit board 10.
- a power supply line 21a having a narrowed width D is drawn out from substantially the center of the second element 21, and the folded portions on both sides of the second element 21 function as top loading.
- the power supply line 21a also functions as an antenna, is formed substantially vertically from the lower end of the printed circuit board 10 to the position of the height L3, and the lower end of the power supply line 21a is electrically connected to the through hole 12.
- the feeder line 21a Since the feeder line 21a is formed in an elongated shape, the impedance component of the feeder line 21a with respect to the low-frequency signal component of the two frequencies is increased by the inductance component generated in the feeder line 21a, and the low-frequency signal component is fed. It becomes difficult to transmit on the line 21a.
- the power supply line 21a acts equivalently as a choke coil, the low-frequency signal component transmitted from the power supply point 13 through the first element 11 and the through hole 12 through the power supply line 21a is the second. Power is supplied to the element 21.
- the low-frequency received signal of the second element 21 is combined with the high-frequency received signal of the first element 11 via the power supply line 21 a and the through hole 12 and output from the power supply point 13.
- the width S of the slit 11a in the first element 11 is wider than the width D of the power supply line 21a so that the power supply line 21a is positioned in the slit 11a. As a result, electrical coupling with 21a is prevented as much as possible.
- the dual-frequency antenna 1 is connected to two different frequency bands of AMPS (Advanced Mobile Phone Service) band of 824 to 894 MHz and PCS (Personal Communication Services) band of 1850 to 1990 MHz, or GSM (Global System for Mobile Communications) of 880 to 960 MHz. ) It can operate in two different frequency bands: 900 band and 1710-1880 MHz GSM1800 band.
- AMPS Advanced Mobile Phone Service
- PCS Personal Communications Services
- GSM Global System for Mobile Communications
- High frequency side of two frequencies (PCS / GMS1800) the length L1 of the first element 11 operates in is represented as about 0.21Ramuda 1 when the the lambda 1 wavelengths is approximately 34.5 mm 1850 MHz, the slit 11a The width S is about 2 mm.
- Low-frequency side of two frequencies (AMPS / GMS900) length L2 of the second element 21 that operates in is represented approximately 0.04 2 when the the lambda 2 wavelength of the frequency of the approximately 15 mm 824 MHz, through hole
- the height L3 of 12 is about 10 mm and is expressed as about 0.06 ⁇ 1 or about 0.03 ⁇ 2 .
- FIG. 3 shows a Smith chart showing the frequency characteristics of the impedance of the dual-frequency antenna 1 having the above dimensions.
- the resistance is about 25.8 ⁇ and the reactance is about ⁇ 21.5 ⁇ at the low frequency 824 MHz, and the resistance is about 48.9 ⁇ and the reactance is about 41.4 ⁇ at the frequency 894 MHz.
- the resistance is about 62.8 ⁇ and the reactance is about 0.1 ⁇ at a frequency of 1850 MHz on the high frequency side, and the resistance is about 74.2 ⁇ and the reactance is about ⁇ 7.6 ⁇ at a frequency of 1990 MHz.
- a better impedance characteristic is shown on the high frequency side.
- FIG. 4 shows the frequency characteristics of the voltage standing wave ratio (VSWR) of the dual-frequency antenna 1 having the above dimensions.
- VSWR voltage standing wave ratio
- the VSWR is required to be about 2.5 or less, but in the example shown in FIG. 4, the maximum VSWR in the AMPS band is about 2.4 (840 MHz), and the maximum VSWR in the PCS band is about 1 .5 (1990 MHz), and good VSWR characteristics are obtained at two frequencies. Note that the VSWR can be set to a better value by adding a matching circuit to supply power to the power supply point 13.
- the dimensions of the dual-frequency antenna 1 are as described above, and the dual-frequency antenna 1 is erected approximately at the center of the ground 14 having a diameter of about 1 m, and the polarization is vertical polarization.
- FIG. 5 shows horizontal plane directivity characteristics when the elevation angle is 0 ° at each frequency of the AMPS band and PCS band according to the dual-frequency antenna 1 of the present invention.
- the maximum gain is about ⁇ 1.7 dBi
- the minimum gain is about ⁇ 2.2 dBi
- the average gain is about ⁇ 2.0 dBi. Is about 0.6 dB, which is a good directional characteristic with almost no directivity.
- the maximum gain is about ⁇ 0.8 dBi
- the minimum gain is about ⁇ 1.5 dBi
- the average gain is about ⁇ 1.2 dBi
- the ripple is about 0.1 mm.
- the directivity characteristic is 7 dB, almost omnidirectional, and the gain is slightly improved.
- the maximum gain is about -1.0 dBi
- the minimum gain is about -1.7 dBi
- the average gain is about -1.4 dBi
- the ripple is about 0.1.
- the directional characteristic is 8 dB, which is almost non-directional.
- the maximum gain is about ⁇ 1.4 dBi
- the minimum gain is about ⁇ 2.3 dBi
- the average gain is ⁇ 1.8 dBi
- the ripple is about 1.
- the directivity characteristic is almost zero omnidirectional with 0 dB.
- the maximum gain is about 0.5 dBi and the minimum gain is about ⁇ 0.9 dBi at the lower limit frequency of the transmission band of 1850 MHz.
- the gain is about -0.2 dBi and the ripple is about 1.4 dB, and the omnidirectional and excellent directivity characteristics are obtained, and a high gain is obtained.
- the maximum gain is about 1.0 dBi
- the minimum gain is about -0.5 dBi
- the average gain is about 0.2 dBi
- the ripple is about 1.5 dB.
- the directivity characteristics are almost omnidirectional, and a higher gain is obtained.
- the maximum gain is about 1.2 dBi
- the minimum gain is about ⁇ 0.3 dBi
- the average gain is about 0.5 dBi
- the ripple is about 1.5 dB.
- the directivity characteristics are almost omnidirectional, and a higher gain is obtained.
- the maximum gain is about 0.3 dBi
- the minimum gain is about ⁇ 1.0 dBi
- the average gain is about ⁇ 0.3 dBi
- the ripple is about 1.V.
- the directional characteristics are good with a 3 dB almost non-directional characteristic, and a high gain is obtained.
- FIG. 6 shows the horizontal plane directivity when the elevation angle is 10 ° at each frequency of the AMPS band and PCS band according to the dual-frequency antenna 1 of the present invention.
- the maximum gain is about 0.2 dBi
- the minimum gain is about ⁇ 0.4 dBi
- the average gain is about ⁇ 0.2 dBi
- the ripple is The gain is improved with a directional characteristic of about 0.6 dB and almost no directivity.
- the maximum gain is about 1.0 dBi
- the minimum gain is about 0.5 dBi
- the average gain is about 0.7 dBi
- the ripple is about 0.5 dB.
- the directional characteristics are good with no directivity, and the gain is further improved.
- the maximum gain is about 1.0 dBi
- the minimum gain is about 0.4 dBi
- the average gain is about 0.8 dBi
- the ripple is about 0.6 dB. It is considered to have good omnidirectional directivity characteristics.
- the maximum gain is about 1.0 dBi
- the minimum gain is about 0.2 dBi
- the average gain is 0.7 dBi
- the ripple is about 0.7 dB. It is considered to have good omnidirectional directivity characteristics.
- the maximum gain is about 4.5 dBi and the minimum gain is about 3.4 dBi at 1850 MHz, which is the lower limit frequency of the transmission band. Is about 3.9 dBi and the ripple is about 1.1 dB, and the omnidirectional good directivity characteristic is obtained, and a high gain is obtained.
- the maximum gain is about 4.4 dBi
- the minimum gain is about 3.4 dBi
- the average gain is about 3.9 dBi
- the ripple is about 1.1 dB.
- the directional characteristics are good with omnidirectionality, and high gain is maintained.
- the maximum gain is about 4.6 dBi
- the minimum gain is about 3.5 dBi
- the average gain is about 4.1 dBi
- the ripple is about 1.1 dB.
- the directional characteristics are excellent in omnidirectionality, and a higher gain is obtained.
- the maximum gain is about 3.6 dBi
- the minimum gain is about 2.6 dBi
- the average gain is about 3.1 dBi
- the ripple is about 1.0 dB.
- the directivity characteristics are almost omnidirectional, and a high gain is obtained.
- FIG. 7 shows the directivity characteristics in the horizontal plane when the elevation angle is 20 ° at each frequency of the AMPS band and the PCS band according to the dual-frequency antenna 1 of the present invention.
- the maximum gain is about 1.8 dBi
- the minimum gain is about 1.4 dBi
- the average gain is about 1.7 dBi
- the ripple is about 0. .4 dB, almost omnidirectional and good directivity, and high gain is obtained.
- the maximum gain is about 2.6 dBi
- the minimum gain is about 2.2 dBi
- the average gain is about 2.4 dBi
- the ripple is about 0.5 dB.
- the directional characteristics are good with no directivity, and the gain is further improved.
- the maximum gain is about 3.1 dBi
- the minimum gain is about 2.7 dBi
- the average gain is about 2.9 dBi
- the ripple is about 0.4 dB.
- the directional characteristics are good with no directivity, and the gain is further improved.
- the maximum gain is about 3.0 dBi
- the minimum gain is about 2.6 dBi
- the average gain is 2.8 dBi
- the ripple is about 0.4 dB. It has good omnidirectional directivity characteristics and high gain is obtained.
- the maximum gain is about 6.6 dBi and the minimum gain is about 5.8 dBi at the lower limit frequency of the transmission band of 1850 MHz, and the average gain Is about 6.1 dBi and the ripple is about 0.8 dB, and the omnidirectional good directivity characteristic is obtained, and a high gain is obtained.
- the maximum gain is about 6.6 dBi
- the minimum gain is about 5.7 dBi
- the average gain is about 6.2 dBi
- the ripple is about 0.9 dB.
- the directional characteristics are good with omnidirectionality, and high gain is maintained.
- the maximum gain is about 6.7 dBi
- the minimum gain is about 5.7 dBi
- the average gain is about 6.3 dBi
- the ripple is about 1.0 dB.
- the directional characteristics are excellent in omnidirectionality, and a higher gain is obtained.
- the maximum gain is about 5.7 dBi
- the minimum gain is about 5.0 dBi
- the average gain is about 5.4 dBi
- the ripple is about 0.7 dB.
- the directivity characteristics are almost omnidirectional, and a high gain is obtained.
- FIG. 8 shows the directivity characteristics in the horizontal plane when the elevation angle is 30 ° at each frequency of the AMPS band and the PCS band according to the dual-frequency antenna 1 of the present invention.
- the maximum gain is about 2.9 dBi
- the minimum gain is about 2.5 dBi
- the average gain is about 2.7 dBi
- the ripple is about 0. .3 dB of almost omnidirectional good directivity characteristics, and high gain is obtained.
- the maximum gain is about 3.4 dBi
- the minimum gain is about 3.0 dBi
- the average gain is about 3.2 dBi
- the ripple is about 0.4 dB.
- the directional characteristics are good with no directivity, and the gain is further improved.
- the maximum gain is about 4.0 dBi
- the minimum gain is about 3.5 dBi
- the average gain is about 3.8 dBi
- the ripple is about 0.5 dB.
- the directional characteristics are good with no directivity, and the gain is further improved.
- the maximum gain is about 3.9 dBi
- the minimum gain is about 3.5 dBi
- the average gain is 3.8 dBi
- the ripple is about 0.5 dB. It has good omnidirectional directivity characteristics and high gain is obtained.
- the maximum gain is about 5.1 dBi and the minimum gain is about 3.5 dBi at the lower limit frequency of the transmission band of 1850 MHz, and the average gain is Is approximately 4.5 dBi, and the ripple is approximately 1.7 dB.
- the maximum gain is about 5.5 dBi
- the minimum gain is about 3.9 dBi
- the average gain is about 4.9 dBi
- the ripple is about 1.7 dB.
- the directional characteristics are good with omnidirectionality, and high gain is maintained.
- the maximum gain is about 5.7 dBi
- the minimum gain is about 4.2 dBi
- the average gain is about 5.1 dBi
- the ripple is about 1.5 dB. It has good omnidirectional directivity characteristics and higher gain.
- the maximum gain is about 4.8 dBi
- the minimum gain is about 3.5 dBi
- the average gain is about 4.3 dBi
- the ripple is about 1.3 dB.
- the directivity characteristics are almost omnidirectional, and a high gain is obtained.
- the dual-frequency antenna 1 of the present invention operates in two different frequency bands, the AMPS band and the PCS band, and can obtain a nearly omnidirectional directional characteristic even when the elevation angle is 0 ° to 30 °. become able to.
- the gain in the two different frequency bands of the AMPS band and the PCS band of the dual frequency antenna 1 according to the present invention shows a tendency that the gain of the high frequency PCS band is high. In this case, since the gain of the dipole antenna is 2.15 dBi, gain greatly exceeding the gain of the dipole antenna is obtained in two different frequency bands depending on the elevation angle.
- the dual-frequency antenna 1 of the present invention can be an antenna that can sufficiently operate in two different frequency bands.
- the two desired frequency bands can be changed by changing the dimensions of the first element 11 or the second element 21 according to the band.
- the dual-frequency antenna 1 of the present invention can be operated in different frequency bands.
- the dual-frequency antenna 1 according to the present invention can be a small and low-profile antenna having a height of about 50 mm and a width of about 15 mm, and the first element 11 and the second element depending on the printed pattern of the printed circuit board 10. Therefore, it is possible to provide an inexpensive dual-frequency antenna with a simple configuration.
- the feeder line 21a that feeds power to the second element 21 may be formed in a meander shape so that the antenna height of the dual-frequency antenna 1 is further suppressed.
- the dual frequency antenna 1 of the present invention when the dual frequency antenna 1 of the present invention is mounted on a vehicle, the dual frequency antenna 1 is fixed on the antenna base attached to the vehicle, and a radome with a resin cover covering the dual frequency antenna 1 is attached to the antenna base. Is preferred.
- two different frequency bands are matched by the pattern shape of the first element 11 formed on the front surface of the printed circuit board 10 and the second element 21 formed on the back surface. Therefore, the two-frequency antenna 1 can be reduced in size and cost.
- an AM / FM broadcast receiving antenna a GPS signal receiving antenna, a terrestrial digital broadcast receiving antenna, a DAB (Digital Audio Broadcast) receiving antenna, an SDARS (Satellite Digital Audio Radio) receiving antenna, and the like. Can do.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Abstract
Description
従来、所望の2つの異なる周波数帯を受信および送信するアンテナが必要な場合は、アンテナ素子の間にチョークコイルを設けることにより2共振を得るようにしたり、独立した2つのアンテナを使用して2周波の2出力を得たり、2周波の2出力を合成して出力を得るようにしていた。
そこで、本発明はチョークコイルを必要とすることなく2つの異なる周波数帯で動作可能な2周波アンテナを提供することを目的としている。
これらの図に示すように、2周波アンテナ1はガラスエポキシ基板等の絶縁性のプリント基板10の表面と裏面とにプリントパターンとして形成された第1素子11と第2素子21とを備えている。プリント基板10は、高さHおよび幅Wの細長い矩形状とされて平面状のグランド14上にほぼ垂直に立設されている。第1素子11はプリント基板10の表面の下端からほぼ幅Wで長さL1の面状のプリントパターンとして形成されており、第1素子11の下部はテーパ部11bが形成されて下端に向かって次第に幅が狭く形成されてインピーダンスが調整されている。また、第1素子11の上縁のほぼ中央から幅がSとされたスリット11aが下方へ向かって形成されている。第1素子11は下端から給電され、その下端には給電点13が設けられている。また、給電点13とされるプリント基板10の下端から高さL3の位置で、プリント基板10のほぼ中央に裏面に電気的に接続されるスルーホール12が設けられている。
図5は、本発明の2周波アンテナ1にかかるAMPS帯とPCS帯の各周波数において仰角が0°とされた際の水平面内指向特性である。図5を参照すると、AMPS帯における送信帯域の下限周波数である824MHzにおいては、最大利得が約-1.7dBi、最小利得が約-2.2dBiとされ、平均利得が約-2.0dBiでリップルが約0.6dBのほぼ無指向性の良好な指向特性とされている。また、AMPS帯における送信帯域の上限周波数である849MHzにおいては、最大利得が約-0.8dBi、最小利得が約-1.5dBiとされ、平均利得が約-1.2dBiでリップルが約0.7dBのほぼ無指向性の良好な指向特性とされ、利得が若干向上している。さらに、AMPS帯における受信帯域の下限周波数である869MHzにおいては、最大利得が約-1.0dBi、最小利得が約-1.7dBiとされ、平均利得が約-1.4dBiでリップルが約0.8dBのほぼ無指向性の良好な指向特性とされている。さらにまた、AMPS帯における受信帯域の上限周波数である894MHzにおいては、最大利得が約-1.4dBi、最小利得が約-2.3dBiとされ、平均利得が-1.8dBiでリップルが約1.0dBのほぼ無指向性の良好な指向特性とされている。
さらに、本発明の2周波アンテナ1においては、プリント基板10の表面に形成された第1素子11および裏面に形成された第2素子21のパターン形状により、2つの異なる周波数帯の整合を取ることができるため、2周波アンテナ1の小型化やローコスト化が可能となる。このため、AM/FM放送受信アンテナ、GPS信号受信アンテナ、地上波デジタル放送受信アンテナ、DAB(Digital Audio Broadcast)受信アンテナ、SDARS(Satellite Digital Audio Radio)受信アンテナ等との複合化を容易とすることができる。
Claims (4)
- 絶縁性の基板の一面において下端から上部に向けて面状に形成された第1素子と、
前記基板の他面において前記第1素子と重ならない上部に形成された第2素子と、
前記基板の下端に配置されたグランドと、
前記第1素子の下端に給電する給電手段と、
前記基板の他面に形成されている前記第2素子から導出された給電ラインの端部に形成され、前記第1素子の中途に接続されているスルーホールとを備え、
前記給電ラインに対応する前記第1素子の部位にスリットが形成されていることを特徴とする2周波アンテナ。 - 前記第1素子の中途から下端に向かってテーパ部が形成されていることを特徴とする請求項1記載の2周波アンテナ。
- 前記第2素子の両側が下方へ折り返されている形状とされており、前記第2素子のほぼ中央から前記給電ラインが引き出されていることを特徴とする請求項1記載の2周波アンテナ。
- 前記第1素子および前記第2素子が、前記基板上に形成されたプリントパターンにより構成されていることを特徴とする請求項1記載の2周波アンテナ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09750393.2A EP2280451B1 (en) | 2008-05-22 | 2009-01-30 | Two frequency antenna |
US12/452,149 US8089410B2 (en) | 2008-05-22 | 2009-01-30 | Dual-band antenna |
CN200980100042XA CN101765944B (zh) | 2008-05-22 | 2009-01-30 | 双频天线 |
HK10108145.5A HK1141898A1 (en) | 2008-05-22 | 2010-08-26 | Two frequency antenna |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008133922A JP5274102B2 (ja) | 2008-05-22 | 2008-05-22 | 2周波アンテナ |
JP2008-133922 | 2008-05-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009142031A1 true WO2009142031A1 (ja) | 2009-11-26 |
Family
ID=41339970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/051536 WO2009142031A1 (ja) | 2008-05-22 | 2009-01-30 | 2周波アンテナ |
Country Status (7)
Country | Link |
---|---|
US (1) | US8089410B2 (ja) |
EP (1) | EP2280451B1 (ja) |
JP (1) | JP5274102B2 (ja) |
KR (1) | KR20110015407A (ja) |
CN (2) | CN101765944B (ja) |
HK (1) | HK1141898A1 (ja) |
WO (1) | WO2009142031A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012023493A (ja) * | 2010-07-13 | 2012-02-02 | Nippon Antenna Co Ltd | 多周波アンテナ |
CN103296374A (zh) * | 2012-03-01 | 2013-09-11 | 深圳光启创新技术有限公司 | 天线装置 |
US8836599B2 (en) * | 2012-03-06 | 2014-09-16 | I-Fong Chen | Multi-band broadband antenna with mal-position feed structure |
US9786987B2 (en) * | 2012-09-14 | 2017-10-10 | Panasonic Intellectual Property Management Co., Ltd. | Small antenna apparatus operable in multiple frequency bands |
TWI619313B (zh) * | 2016-04-29 | 2018-03-21 | 和碩聯合科技股份有限公司 | 電子裝置及其雙頻印刷式天線 |
KR101991706B1 (ko) * | 2017-12-28 | 2019-09-30 | 주식회사 에이스테크놀로지 | 차량 간 통신용 안테나 |
JP7332863B2 (ja) * | 2019-06-05 | 2023-08-24 | ミツミ電機株式会社 | アンテナ装置 |
CN114667642A (zh) * | 2019-10-30 | 2022-06-24 | 株式会社村田制作所 | 天线装置和具备该天线装置的无线通信器件 |
KR20210122969A (ko) * | 2020-04-02 | 2021-10-13 | 동우 화인켐 주식회사 | 안테나 패키지 및 이를 포함하는 화상 표시 장치 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6377227B1 (en) * | 1999-04-28 | 2002-04-23 | Superpass Company Inc. | High efficiency feed network for antennas |
JP2004282329A (ja) * | 2003-03-14 | 2004-10-07 | Senyu Communication:Kk | 無線lan用デュアルバンド全方向性アンテナ |
US20060071858A1 (en) * | 2004-09-28 | 2006-04-06 | Seong-Youp Suh | Antennas for multicarrier communications and multicarrier transceiver |
US20060158383A1 (en) * | 2005-01-18 | 2006-07-20 | Samsung Electronics Co., Ltd. | Substrate type dipole antenna having stable radiation pattern |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3464639B2 (ja) | 2000-03-17 | 2003-11-10 | 日本アンテナ株式会社 | 多周波用アンテナ |
GB2389964B (en) * | 2002-06-19 | 2005-12-07 | Harada Ind | Multi-band vehicular blade antenna |
TW541762B (en) * | 2002-07-24 | 2003-07-11 | Ind Tech Res Inst | Dual-band monopole antenna |
JP2005094437A (ja) * | 2003-09-18 | 2005-04-07 | Mitsumi Electric Co Ltd | Uwb用アンテナ |
CN1979947B (zh) * | 2005-11-30 | 2011-11-16 | 富士康(昆山)电脑接插件有限公司 | 单极天线 |
JP2007267214A (ja) * | 2006-03-29 | 2007-10-11 | Fujitsu Component Ltd | アンテナ装置 |
CN101060195A (zh) * | 2006-04-21 | 2007-10-24 | 鸿富锦精密工业(深圳)有限公司 | 双频印刷式天线 |
TWI342639B (en) * | 2006-07-28 | 2011-05-21 | Lite On Technology Corp | A compact dtv receiving antenna |
-
2008
- 2008-05-22 JP JP2008133922A patent/JP5274102B2/ja not_active Expired - Fee Related
-
2009
- 2009-01-30 CN CN200980100042XA patent/CN101765944B/zh not_active Expired - Fee Related
- 2009-01-30 EP EP09750393.2A patent/EP2280451B1/en not_active Not-in-force
- 2009-01-30 US US12/452,149 patent/US8089410B2/en not_active Expired - Fee Related
- 2009-01-30 WO PCT/JP2009/051536 patent/WO2009142031A1/ja active Application Filing
- 2009-01-30 CN CN201310130750.6A patent/CN103259083B/zh not_active Expired - Fee Related
-
2010
- 2010-01-06 KR KR1020107001016A patent/KR20110015407A/ko not_active Application Discontinuation
- 2010-08-26 HK HK10108145.5A patent/HK1141898A1/xx not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6377227B1 (en) * | 1999-04-28 | 2002-04-23 | Superpass Company Inc. | High efficiency feed network for antennas |
JP2004282329A (ja) * | 2003-03-14 | 2004-10-07 | Senyu Communication:Kk | 無線lan用デュアルバンド全方向性アンテナ |
US20060071858A1 (en) * | 2004-09-28 | 2006-04-06 | Seong-Youp Suh | Antennas for multicarrier communications and multicarrier transceiver |
US20060158383A1 (en) * | 2005-01-18 | 2006-07-20 | Samsung Electronics Co., Ltd. | Substrate type dipole antenna having stable radiation pattern |
Also Published As
Publication number | Publication date |
---|---|
KR20110015407A (ko) | 2011-02-15 |
EP2280451A4 (en) | 2013-01-23 |
CN101765944A (zh) | 2010-06-30 |
HK1141898A1 (en) | 2010-11-19 |
US8089410B2 (en) | 2012-01-03 |
US20100103050A1 (en) | 2010-04-29 |
CN103259083A (zh) | 2013-08-21 |
EP2280451B1 (en) | 2014-03-12 |
EP2280451A1 (en) | 2011-02-02 |
CN103259083B (zh) | 2016-06-01 |
CN101765944B (zh) | 2013-10-16 |
JP5274102B2 (ja) | 2013-08-28 |
JP2009284193A (ja) | 2009-12-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5274102B2 (ja) | 2周波アンテナ | |
KR100771775B1 (ko) | 수직배열 내장형 안테나 | |
US7339528B2 (en) | Antenna for mobile communication terminals | |
JP4121424B2 (ja) | 2偏波共用アンテナ | |
JP4308786B2 (ja) | 携帯無線機 | |
WO2012077389A1 (ja) | アンテナ装置 | |
JP2010526471A (ja) | 多重帯域アンテナ及びそれを備える無線通信装置 | |
US20100013714A1 (en) | Antenna arrangement | |
JP3898710B2 (ja) | 二重カップリング給電を利用したマルチバンド用積層型チップアンテナ | |
KR20100113854A (ko) | 커플링 매칭을 이용한 광대역 안테나 | |
US11688954B2 (en) | Highly-integrated vehicle antenna configuration | |
US7391375B1 (en) | Multi-band antenna | |
US20170170555A1 (en) | Decoupled Antennas For Wireless Communication | |
US9419327B2 (en) | System for radiating radio frequency signals | |
CN104969413A (zh) | 集成天线及其制造方法 | |
JP4607925B2 (ja) | アンテナ装置 | |
WO2002021637A1 (fr) | Antenne a 2 frequences | |
KR101523026B1 (ko) | 다중대역 옴니 안테나 | |
JP5576951B2 (ja) | 2周波アンテナ | |
US20230253712A1 (en) | Antenna device for vehicle | |
KR20090126001A (ko) | 휴대용 단말기 내장형 안테나 | |
JP5232577B2 (ja) | 広帯域アンテナ | |
EP4318808A1 (en) | Antenna device | |
CN108428999B (zh) | 天线 | |
KR20090010828A (ko) | 광대역 내장형 안테나 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980100042.X Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12452149 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009750393 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20107001016 Country of ref document: KR Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09750393 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |