WO2004066432A1 - Transition entre un guide d'onde rectangulaire et une ligne microruban - Google Patents
Transition entre un guide d'onde rectangulaire et une ligne microruban Download PDFInfo
- Publication number
- WO2004066432A1 WO2004066432A1 PCT/FR2003/050201 FR0350201W WO2004066432A1 WO 2004066432 A1 WO2004066432 A1 WO 2004066432A1 FR 0350201 W FR0350201 W FR 0350201W WO 2004066432 A1 WO2004066432 A1 WO 2004066432A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rib
- microstrip line
- substrate
- waveguide
- transition
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced with unbalanced lines or devices
- H01P5/107—Hollow-waveguide/strip-line transitions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49016—Antenna or wave energy "plumbing" making
Definitions
- the invention relates to a transition between a rectangular waveguide and a microstrip line.
- Waveguide structures are often well suited for performing passive functions with low losses and high performance (antenna source such as corrugated horns, polarizers, filters, diplexers) more particularly at very high frequencies (centimeter bands and millimeter).
- Planar structures are very well suited for the low-cost, high-volume production of devices integrating passive and active functions using the methods of manufacturing conventional printed circuits at frequencies up to millimeter bands.
- the antenna source, the filter and the polarizer if necessary are produced in waveguide technology while the rest of the signal processing functions (weak amplification noise, mixing and intermediate filtering) are carried out using conventional printed circuit technology.
- European patent n ° 0350324 describes a transition between a waveguide structure and a microstrip transmission line according to which a conductive line is supported inside the waveguide perpendicular to its axis and the microstrip transmission line extends transversely through the wall of the waveguide in a position producing energy coupling between the microstrip transmission line and the conductive line.
- the substrate is slid under the ribbed part waveguide to ensure good mechanical stability and easy assembly.
- a guided structure is produced on a microwave substrate.
- the rectangular waveguide is produced by a double-sided metallization of the microwave substrate associated with metallized holes to produce the lateral faces of the rectangular waveguide.
- the object of the invention is to provide a transition between a rectangular waveguide and a microstrip line which can be manufactured at low cost without assembling several parts.
- the transition is characterized in that it consists of a rectangular rib waveguide produced in a bar of synthetic material, the metallized base of which under the rib extends in the form of a plate of synthetic material constituting a substrate for the microstrip line, the rib having a bottom extending between the upper plane of the rib waveguide and the upper plane of the substrate and the microstrip line being disposed on the upper plane of the substrate in the extension of the bottom of the rib.
- the bottom of the rib has a linear profile.
- the foam plate constituting the substrate has a thickness which varies in a longitudinal direction to modify the width of the microstrip line while maintaining its almost constant characteristic impedance.
- the synthetic material is a dielectric foam having electrical characteristics close to those of air, and
- the foam is a polymetacrylate imide foam.
- Figure 1 shows a block diagram of a transition according to the invention between a rectangular waveguide and a microstrip line.
- FIG. 1 a transition between a rectangular waveguide and a microstrip line is formed by a rectangular rib waveguide G produced in a foam bar of synthetic material which also serves as a substrate for the microstrip line.
- the bar of foam made of synthetic material for example a polymetacrylate imide foam known for its electrical characteristics close to those of air, for its mechanical characteristics of rigidity and lightness and for its low cost price, extends in a longitudinal direction A between two ends 1, 2 between which is formed a shoulder 3 which extends perpendicular to the longitudinal direction A.
- This shoulder 3 defines an upper plane 4 of the rib waveguide and an upper plane 5 of the substrate.
- the upper plane 5 of the substrate is offset perpendicular to the longitudinal direction of the bar of a height H relative to the upper plane 4 of the rib waveguide, the height H corresponding to the height of the rib of the rib waveguide.
- the bottom of the rib 6 of the waveguide G extends between the upper plane 4 of the waveguide and the upper plane 5 of the substrate through
- the metallized base 8 of the rib waveguide which extends under the rib 6 therefore extends in the form of a foam plate constituting the substrate for the microstrip line.
- This metallized base therefore serves as a ground plane for the microstrip line 7.
- the lateral faces 9 and 10 of the foam bar defining the rectangular rib waveguide are also metallized up to the limit of the shoulder 3 although the metallization of the lateral flanks of the plate constituting the substrate of the microstrip line may not not degrade the electrical behavior of the microstrip line.
- the bottom of the rib 6, at the junction with the microstrip line 7, is at a distance E from the ground plane of the microstrip line, this distance E corresponding to the thickness of the substrate at the junction with the rib waveguide.
- the bottom of the rib 6 has a linear profile which allows it to be produced simply by machining, stamping, hot pressing or by cutting the foam bar.
- the rib 6 is centered in the width of the foam bar and its dimensions can be adjusted according to the desired working frequency range by ensuring an adequate gradual passage from the quasi-TEM propagation mode of the microstrip line to the fundamental mode of the guide. Such a progressive passage takes place according to a given profile, linear, exponential or other.
- the minimum length of the profile obtained to ensure correct adaptation over the entire operating range must be of the order of a fraction of the wavelength (for example a quarter of the wavelength) corresponding to the lowest frequency.
- the microstrip line 7 may have a width identical to that of the rib or greater, but it is well known that the width of a microstrip line depends on the thickness of the substrate on which it is arranged as well as its permittivity. Thus, it is possible to adjust the height of the substrate in the junction plane so as to obtain an identical width, or as close as possible to that of the rib. Then to return to the most suitable substrate thickness, for the microstrip line 7, it suffices to gradually vary the thickness of the foam plate constituting the substrate in the longitudinal direction A.
- This variation in thickness is done at quasi-constant characteristic impedance by simultaneously modifying the width of the microstrip line which avoids passing through quarter-wave impedance transformers with discontinuous variation in line width which are the cause of performance degradations ( losses, reduction in bandwidth).
- the impedance adaptation of the microstrip line is illustrated by a continuous linear decrease (shown in broken lines by 11) in the thickness of the substrate in direction A and by a continuous linear decrease (shown in straight lines). interrupted by 12) of the width of the microstrip line over a certain length L of the microstrip line.
- FIGS. 2 to 4 illustrate a method of manufacturing the transition according to the invention in foam technology.
- a foam bar 20 is previously put in a rectangular shape in cross section with dimensions which correspond to the internal dimensions of a rectangular waveguide for operation a priori mono modal in the desired frequency range.
- the foam bar is worked by machining, thermoforming, stamping or the like to form the rib 6.
- the operation of delimiting the rib 6 in the section of the waveguide G can be extended at the section of the microstrip line 7.
- Complete metallization of the foam block 20 can then be performed, the metallization of the rib and the formation of the microstrip line being carried out simultaneously.
- a non-directive metallization may be used by projection or with a brush.
- the foam block is cut transversely at the end of the rib 6 to form the plate-shaped substrate 5 of the microstrip line.
- the transition according to the invention is therefore carried out in one piece using a material of low permittivity, generating low losses and having good mechanical strength which contributes to obtaining a microstrip line whose dimensions are in accordance with those in the waveguide section. Furthermore, the realization of the transition according to the invention makes it possible to obtain electrical and physical continuity between the waveguide and the microstrip line without recourse to impedance transformers of the discontinuous change in line width type.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/540,642 US7382212B2 (en) | 2003-01-03 | 2003-12-22 | Transition between a rectangular waveguide and a microstrip line comprised of a single metallized bar |
AU2003302294A AU2003302294A1 (en) | 2003-01-03 | 2003-12-22 | Transition between a rectangular waveguide and a microstrip line |
MXPA05007249A MXPA05007249A (es) | 2003-01-03 | 2003-12-22 | Transicion entre una guia de ondas rectangular y una linea de microtiras. |
BR0317729-7A BR0317729A (pt) | 2003-01-03 | 2003-12-22 | Transição entre guia de onda retangular e linha de microbanda |
DE60305349T DE60305349T2 (de) | 2003-01-03 | 2003-12-22 | Übergang von einem rechteckigen hohlleiter auf eine mikrostreifenleitung |
JP2004567029A JP4263176B2 (ja) | 2003-01-03 | 2003-12-22 | 方形導波管とマイクロストリップラインとの間の遷移体 |
EP03810852A EP1579528B1 (fr) | 2003-01-03 | 2003-12-22 | Transition entre un guide d onde rectangulaire et une ligne microruban |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0300045 | 2003-01-03 | ||
FR0300045A FR2849720B1 (fr) | 2003-01-03 | 2003-01-03 | Transition entre un guide d'onde rectangulaire et une ligne microruban |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004066432A1 true WO2004066432A1 (fr) | 2004-08-05 |
Family
ID=32524679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/050201 WO2004066432A1 (fr) | 2003-01-03 | 2003-12-22 | Transition entre un guide d'onde rectangulaire et une ligne microruban |
Country Status (11)
Country | Link |
---|---|
US (1) | US7382212B2 (fr) |
EP (1) | EP1579528B1 (fr) |
JP (1) | JP4263176B2 (fr) |
KR (1) | KR100998207B1 (fr) |
CN (1) | CN1322628C (fr) |
AU (1) | AU2003302294A1 (fr) |
BR (1) | BR0317729A (fr) |
DE (1) | DE60305349T2 (fr) |
FR (1) | FR2849720B1 (fr) |
MX (1) | MXPA05007249A (fr) |
WO (1) | WO2004066432A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106024921A (zh) * | 2016-06-30 | 2016-10-12 | 浙江大学 | 悬挂型可见光及近红外波段硅基光波导集成光电探测器 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8305280B2 (en) * | 2009-11-04 | 2012-11-06 | Raytheon Company | Low loss broadband planar transmission line to waveguide transition |
KR101786970B1 (ko) | 2010-07-02 | 2017-11-15 | 누보트로닉스, 인크. | 3차원 마이크로구조체 |
US8552813B2 (en) | 2011-11-23 | 2013-10-08 | Raytheon Company | High frequency, high bandwidth, low loss microstrip to waveguide transition |
US9065163B1 (en) | 2011-12-23 | 2015-06-23 | Nuvotronics, Llc | High frequency power combiner/divider |
US9405064B2 (en) * | 2012-04-04 | 2016-08-02 | Texas Instruments Incorporated | Microstrip line of different widths, ground planes of different distances |
US8952752B1 (en) | 2012-12-12 | 2015-02-10 | Nuvotronics, Llc | Smart power combiner |
FR3010835B1 (fr) * | 2013-09-19 | 2015-09-11 | Inst Mines Telecom Telecom Bretagne | Dispositif de jonction entre une ligne de transmission imprimee et un guide d'ondes dielectrique |
DE102015221142A1 (de) * | 2014-10-31 | 2016-05-19 | Anritsu Corporation | Übertragungsleitungs-Umwandlungsstruktur für ein Millimeterwellenband |
CN106061093B (zh) * | 2016-08-04 | 2019-08-23 | 同方威视技术股份有限公司 | 用于电子直线加速器的波导系统以及电子直线加速器 |
KR20180088002A (ko) | 2017-01-26 | 2018-08-03 | 주식회사 케이엠더블유 | 전송선로-도파관 전이 장치 |
US11664568B2 (en) * | 2019-06-11 | 2023-05-30 | Intel Corporation | Waveguides including at least one ridge associated with at least one dielectric core and the waveguides are surrounded by a conductive shell |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2897461A (en) * | 1953-09-14 | 1959-07-28 | Boeing Co | Wave guide construction |
US3932823A (en) * | 1975-04-23 | 1976-01-13 | The United States Of America As Represented By The Secretary Of The Navy | Microstrip to waveguide adapter |
EP0458364A2 (fr) * | 1990-05-25 | 1991-11-27 | Sumitomo Electric Industries, Ltd. | Dispositif hyperfréquence |
JPH05335816A (ja) * | 1992-06-03 | 1993-12-17 | Japan Radio Co Ltd | 導波管−マイクロストリップ線路変換器 |
US6265950B1 (en) * | 1996-09-11 | 2001-07-24 | Robert Bosch Gmbh | Transition from a waveguide to a strip transmission line |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3265995A (en) * | 1964-03-18 | 1966-08-09 | Bell Telephone Labor Inc | Transmission line to waveguide junction |
US6242984B1 (en) * | 1998-05-18 | 2001-06-05 | Trw Inc. | Monolithic 3D radial power combiner and splitter |
WO2000035044A1 (fr) | 1998-12-10 | 2000-06-15 | Raytheon Company | Transition de microruban a large bande en guide d'ondes a plaques paralleles |
-
2003
- 2003-01-03 FR FR0300045A patent/FR2849720B1/fr not_active Expired - Fee Related
- 2003-12-22 MX MXPA05007249A patent/MXPA05007249A/es active IP Right Grant
- 2003-12-22 EP EP03810852A patent/EP1579528B1/fr not_active Expired - Fee Related
- 2003-12-22 US US10/540,642 patent/US7382212B2/en not_active Expired - Lifetime
- 2003-12-22 DE DE60305349T patent/DE60305349T2/de not_active Expired - Lifetime
- 2003-12-22 WO PCT/FR2003/050201 patent/WO2004066432A1/fr active IP Right Grant
- 2003-12-22 JP JP2004567029A patent/JP4263176B2/ja not_active Expired - Fee Related
- 2003-12-22 AU AU2003302294A patent/AU2003302294A1/en not_active Abandoned
- 2003-12-22 BR BR0317729-7A patent/BR0317729A/pt not_active IP Right Cessation
- 2003-12-22 CN CNB2003801081523A patent/CN1322628C/zh not_active Expired - Fee Related
- 2003-12-22 KR KR1020057012057A patent/KR100998207B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2897461A (en) * | 1953-09-14 | 1959-07-28 | Boeing Co | Wave guide construction |
US3932823A (en) * | 1975-04-23 | 1976-01-13 | The United States Of America As Represented By The Secretary Of The Navy | Microstrip to waveguide adapter |
EP0458364A2 (fr) * | 1990-05-25 | 1991-11-27 | Sumitomo Electric Industries, Ltd. | Dispositif hyperfréquence |
JPH05335816A (ja) * | 1992-06-03 | 1993-12-17 | Japan Radio Co Ltd | 導波管−マイクロストリップ線路変換器 |
US6265950B1 (en) * | 1996-09-11 | 2001-07-24 | Robert Bosch Gmbh | Transition from a waveguide to a strip transmission line |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 018, no. 161 (E - 1526) 17 March 1994 (1994-03-17) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106024921A (zh) * | 2016-06-30 | 2016-10-12 | 浙江大学 | 悬挂型可见光及近红外波段硅基光波导集成光电探测器 |
Also Published As
Publication number | Publication date |
---|---|
FR2849720B1 (fr) | 2005-04-15 |
JP4263176B2 (ja) | 2009-05-13 |
EP1579528B1 (fr) | 2006-05-17 |
JP2006513655A (ja) | 2006-04-20 |
EP1579528A1 (fr) | 2005-09-28 |
CN1735995A (zh) | 2006-02-15 |
FR2849720A1 (fr) | 2004-07-09 |
CN1322628C (zh) | 2007-06-20 |
KR20050089078A (ko) | 2005-09-07 |
DE60305349D1 (de) | 2006-06-22 |
KR100998207B1 (ko) | 2010-12-07 |
BR0317729A (pt) | 2005-11-22 |
MXPA05007249A (es) | 2005-09-08 |
US7382212B2 (en) | 2008-06-03 |
US20060152298A1 (en) | 2006-07-13 |
DE60305349T2 (de) | 2007-05-10 |
AU2003302294A1 (en) | 2004-08-13 |
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