JP2006222779A - Transceiver unit and measuring method of same - Google Patents

Transceiver unit and measuring method of same Download PDF

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JP2006222779A
JP2006222779A JP2005034782A JP2005034782A JP2006222779A JP 2006222779 A JP2006222779 A JP 2006222779A JP 2005034782 A JP2005034782 A JP 2005034782A JP 2005034782 A JP2005034782 A JP 2005034782A JP 2006222779 A JP2006222779 A JP 2006222779A
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land
measurement
island
transmission
circuit board
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Yoshihisa Kishimoto
善久 岸本
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a transceiver unit and its measuring method for performing measurement for property evaluation and the like at low cost in a simple way. <P>SOLUTION: A circuit board 2 is provided in which a transceiver circuit 1 is constituted. The circuit board 2 is provided with a measurement land 3 which is connected to an input/output edge 1a of the transceiver circuit 1, and to which a hot edge 11a of a probe 11 connected to a measuring device can be put in contact with; and first and second island-shaped lands 4, 5 which are located near to the measurement land 3, and to which a cold edge 11b is both connected when the hot edge 11a of the probe 11 is contacted with the measurement land 3. The first island-shaped land 4 is grounded in the circuit board 2. The measurement land 3 and the second island-shaped land 5 are connected to each other with a transmission line 6 having an electric length of 1/4 of a wavelength corresponding to the using frequency, and the second island-shaped land 5 functions as an antenna connecting terminal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、特性評価のための測定等を低コストで簡単に行えるようにした送受信ユニットおよびその測定方法に関する。   The present invention relates to a transmission / reception unit that can easily perform measurement for characteristic evaluation at a low cost and a measurement method thereof.

特性評価のために使用される従来の無線機を図２に従って説明する。１００は無線機に使用される高周波信号分岐回路、１０１はアンテナ用端子、１０２は第１の伝送線路、１０３はスイッチ、１０４は第２の伝送線路、１０５は測定用端子、１０６はコネクタ、１０７は第３の伝送線路、１０８は無線回路用端子、１０９は接続位置である。   A conventional radio used for characteristic evaluation will be described with reference to FIG. 100 is a high-frequency signal branching circuit used for a radio, 101 is an antenna terminal, 102 is a first transmission line, 103 is a switch, 104 is a second transmission line, 105 is a measurement terminal, 106 is a connector, 107 Is a third transmission line, 108 is a radio circuit terminal, and 109 is a connection position.

高周波信号分岐回路１００でスイッチ１０３を断とし、コネクタ１０６に何も接続しないときは、接続位置１０９から第２の伝送線路１０４とコネクタ１０６を含めた伝送線路の電気長は使用周波数で約１／２波長であり、接続位置１０９からコネクタ１０６の方を見た使用周波数でのインピーダンスは理想的には無限大になっているので、測定用端子１０５を付加したことの影響は無視でき、無線回路用端子１０８からの入出力電力は全てアンテナ用端子１０１へ入出力される。   When the switch 103 is turned off in the high-frequency signal branch circuit 100 and nothing is connected to the connector 106, the electrical length of the transmission line including the second transmission line 104 and the connector 106 from the connection position 109 is about 1 / of the operating frequency. Since there are two wavelengths and the impedance at the operating frequency viewed from the connection position 109 toward the connector 106 is ideally infinite, the influence of adding the measurement terminal 105 can be ignored. All input / output power from the terminal 108 is input to and output from the antenna terminal 101.

コネクタ１０６に測定器を接続し、送受信特性を測定する場合は、スイッチ１０３を接とし、接続位置１０９から第１の伝送線路１０２とスイッチ１０３を含めた電気長は使用周波数で約１／４波長として接地し、接続位置１０９からスイッチ１０３の方を見た使用周波数でのインピーダンスは理想的には無限大になっているので、無線回路用端子１０８からの入出力電力は全て測定用端子１０５へ入出力され、無線機の入出力電力を測定することが可能である（例えば、特許文献１参照。）。   When a measuring instrument is connected to the connector 106 and transmission / reception characteristics are measured, the switch 103 is in contact, and the electrical length including the first transmission line 102 and the switch 103 from the connection position 109 is about ¼ wavelength in use frequency. Since the impedance at the operating frequency when viewed from the connection position 109 toward the switch 103 is ideally infinite, all the input / output power from the radio circuit terminal 108 goes to the measurement terminal 105. It is possible to measure the input / output power of the wireless device (see, for example, Patent Document 1).

特開平１１−２９８３６５号公報（図１）Japanese Patent Laid-Open No. 11-298365 (FIG. 1)

上記の従来例では、測定時にのみ使用され、実使用状態では使用されることがないスイッチを設けているので、無線機がコスト高になるという問題がある。   In the above conventional example, a switch that is used only at the time of measurement and is not used in an actual use state is provided.

本発明は、特性評価のための測定等を低コストで簡単に行えるようにした送受信ユニットおよびその測定方法を提供することを目的とする。   SUMMARY OF THE INVENTION An object of the present invention is to provide a transmission / reception unit that can easily perform measurement for characteristic evaluation at a low cost and a measurement method thereof.

本発明の送受信ユニットは、送受信回路が構成された回路基板を有し、前記回路基板上には前記送受信回路の入出力端に接続されると共に、測定器に接続されたプローブのホット端が接触可能な測定ランドと、前記測定ランドの近傍に配置され、前記プローブのホット端が前記測定ランドに接触したときにコールド端が共に接触する第１及び第２の島状のランドとを設け、前記第１の島状のランドを前記回路基板内で接地すると共に、前記測定ランドと前記第２の島状のランドとを使用周波数に対応する波長の１／４の電気長を有する伝送線路で相互に接続し、前記第２の島状のランドをアンテナ接続用端子とした。   The transmission / reception unit of the present invention has a circuit board on which a transmission / reception circuit is configured, and is connected to an input / output end of the transmission / reception circuit on the circuit board and a hot end of a probe connected to a measuring instrument is in contact with the circuit board. Possible measurement lands, and first and second island-like lands disposed near the measurement lands, the cold ends of which contact when the hot ends of the probes contact the measurement lands, The first island-shaped land is grounded in the circuit board, and the measurement land and the second island-shaped land are mutually connected by a transmission line having an electrical length of ¼ of a wavelength corresponding to a use frequency. The second island-shaped land was used as an antenna connection terminal.

また、前記第１及び第２の島状ランドを前記測定ランドを囲むように前記測定ランドに対して同心的に配置した。   Further, the first and second island lands are arranged concentrically with the measurement land so as to surround the measurement land.

また、本発明の送受信ユニットの測定方法は、送受信回路が構成された回路基板上に前記送受信回路の入出力端に接続された測定ランドと、前記測定ランドの近傍に配置された第１及び第２の島状のランドとを設け、前記第１の島状のランドを前記回路基板内で接地すると共に、前記測定ランドと前記第２の島状のランドとを使用周波数に対応する波長の１／４の電気長を有する伝送線路で相互に接続し、前記第２の島状のランドをアンテナ接続用端子とし、測定器に接続されたプローブのホット端を前記測定ランドに接触させると共に、前記プローブのコールド端を前記第１及び第２の島状のランドに接触させ、前記測定器と前記送受信回路との間で測定用信号を入出力した。   Also, the measuring method of the transmission / reception unit of the present invention includes a measurement land connected to an input / output terminal of the transmission / reception circuit on a circuit board on which the transmission / reception circuit is configured, and a first and a first disposed in the vicinity of the measurement land. Two island-like lands are provided, the first island-like lands are grounded in the circuit board, and the measurement land and the second island-like lands have a wavelength corresponding to a use frequency. / 4 each other with a transmission line having an electric length of / 4, the second island-like land as an antenna connection terminal, the hot end of the probe connected to the measuring instrument is brought into contact with the measurement land, and The cold end of the probe was brought into contact with the first and second island-like lands, and measurement signals were input / output between the measuring instrument and the transmitting / receiving circuit.

また、前記第１及び第２の島状ランドを前記測定ランドを囲むように前記測定ランドに対して同心的に配置した。   Further, the first and second island lands are arranged concentrically with the measurement land so as to surround the measurement land.

請求項１に記載した送受信ユニットによれば、送受信回路が構成された回路基板を有し、回路基板上には送受信回路の入出力端に接続されると共に、測定器に接続されたプローブのホット端が接触可能な測定ランドと、測定ランドの近傍に配置され、プローブのホット端が測定ランドに接触したときにコールド端が共に接触する第１及び第２の島状のランドとを設け、第１の島状のランドを回路基板内で接地すると共に、測定ランドと第２の島状のランドとを使用周波数に対応する波長の１／４の電気長を有する伝送線路で相互に接続し、第２の島状のランドをアンテナ接続用端子としたので、コストを高めることなく簡単に測定ができる送受信ユニットが構成できる。   According to the transmission / reception unit described in claim 1, the transmission / reception circuit includes a circuit board on which a transmission / reception circuit is configured, and is connected to an input / output terminal of the transmission / reception circuit on the circuit board and hot of a probe connected to a measuring instrument. A measurement land that can be contacted by the end, and first and second island-shaped lands that are disposed in the vicinity of the measurement land and that contact the cold end when the hot end of the probe contacts the measurement land, Grounding one island-shaped land in the circuit board, and connecting the measurement land and the second island-shaped land to each other by a transmission line having an electrical length of ¼ of the wavelength corresponding to the operating frequency; Since the second island-shaped land is used as the antenna connection terminal, a transmission / reception unit that can be easily measured without increasing the cost can be configured.

また、請求項２に記載した送受信ユニットによれば、第１及び第２の島状ランドを測定ランドを囲むように測定ランドに対して同心的に配置したので、同軸型のプローブを使用して正確な測定をできる送受信ユニットを構成できる。   According to the transmission / reception unit described in claim 2, since the first and second island lands are arranged concentrically with the measurement land so as to surround the measurement land, a coaxial probe is used. A transmission / reception unit capable of performing accurate measurement can be configured.

また、請求項３に記載した送受信ユニットの測定方法によれば、送受信回路が構成された回路基板上に送受信回路の入出力端に接続された測定ランドと、測定ランドの近傍に配置された第１及び第２の島状のランドとを設け、第１の島状のランドを回路基板内で接地すると共に、測定ランドと第２の島状のランドとを使用周波数に対応する波長の１／４の電気長を有する伝送線路で相互に接続し、第２の島状のランドをアンテナ接続用端子とし、測定器に接続されたプローブのホット端を測定ランドに接触させると共に、プローブのコールド端を第１及び第２の島状のランドに接触させ、測定器と送受信回路との間で測定用信号を入出力したので、コストを高めることなく簡単に測定ができる。   According to the measurement method of the transmission / reception unit described in claim 3, the measurement land connected to the input / output end of the transmission / reception circuit on the circuit board on which the transmission / reception circuit is configured, and the first arranged in the vicinity of the measurement land. 1 and second island-shaped lands are provided, the first island-shaped lands are grounded in the circuit board, and the measurement land and the second island-shaped lands are 1 / of the wavelength corresponding to the operating frequency. 4 are connected to each other by a transmission line having an electric length of 4, the second island-shaped land is used as an antenna connection terminal, the hot end of the probe connected to the measuring instrument is brought into contact with the measurement land, and the cold end of the probe Is brought into contact with the first and second island-like lands, and measurement signals are input and output between the measuring instrument and the transmission / reception circuit, so that measurement can be easily performed without increasing costs.

また、請求項４に記載した送受信ユニットの測定方法によれば、第１及び第２の島状ランドを測定ランドを囲むように測定ランドに対して同心的に配置したので、同軸型のプローブを使用して正確な測定が可能となる。   According to the measurement method of the transmission / reception unit described in claim 4, since the first and second island lands are arranged concentrically with the measurement land so as to surround the measurement land, the coaxial probe is used. It can be used for accurate measurement.

図１を参照して本発明の送受信ユニット及び送受信ユニットの測定方法を説明する。送受信回路１が構成される回路基板２には導体の測定ランド３が形成される。この測定ランド３の周囲には、これと同一面に導体からなる第１の島状のランド４及び第２の島状のランド５が測定ランド３を囲むようにその近傍で弧状に形成される。第１の島状のランド４は、第２の島状のランドよりも弧の長さが長くなっており、回路基板２内の接地部（図示せず）に接続されている。また、第２の島状のランドは、伝送線路６によって測定ランド３に接続される。伝送線路６は送受信回路１に入出力される信号の周波数（使用周波数）に対応する波長の１／４の電気長を有する。   The transmission / reception unit and the measurement method of the transmission / reception unit of the present invention will be described with reference to FIG. A conductor measurement land 3 is formed on a circuit board 2 on which the transmission / reception circuit 1 is formed. Around the measurement land 3, a first island-like land 4 and a second island-like land 5 made of a conductor are formed in an arc shape in the vicinity of the measurement land 3 so as to surround the measurement land 3. . The first island-like land 4 has an arc length longer than that of the second island-like land, and is connected to a ground portion (not shown) in the circuit board 2. The second island-shaped land is connected to the measurement land 3 by the transmission line 6. The transmission line 6 has an electrical length of ¼ of the wavelength corresponding to the frequency (use frequency) of the signal input / output to / from the transmission / reception circuit 1.

測定ランド３はスルーホールによって回路基板２の下面に設けられた配線パターン７に接続され、この配線パターン７はするホールによって上面のハイセンタターン８に接続される。そして、配線パターン８が送受信回路１の入出力端１ａに接続される。従って、第１の島状のランド３と配線パターン７との接触が避けられる。また、回路基板２には整合回路９が構成され、第２の島状のランド５は整合回路９を介して外部のアンテナ１０に接続される。従って、第２の島状のランドはアンテナ接続用端子として使用される。アンテナ１０を回路基板２上に形成することも可能である。   The measurement land 3 is connected to a wiring pattern 7 provided on the lower surface of the circuit board 2 by a through hole, and the wiring pattern 7 is connected to a high center turn 8 on the upper surface by a hole. The wiring pattern 8 is connected to the input / output terminal 1 a of the transmission / reception circuit 1. Therefore, contact between the first island-like land 3 and the wiring pattern 7 is avoided. In addition, a matching circuit 9 is configured on the circuit board 2, and the second island-shaped land 5 is connected to an external antenna 10 through the matching circuit 9. Therefore, the second island-shaped land is used as an antenna connection terminal. It is also possible to form the antenna 10 on the circuit board 2.

測定ランド３、第１及び第２の島状のランド４、５には、送受信回路１の特性評価のための測定時にプローブ１１が接触される。プローブ１１はホット端（信号入出力端）である中心導体１１ａとコールド端（接地部）である外部導体１１ｂとを有した同軸型のプローブであり、中心導体１１ａには接触ピンＰ１が取り付けられ、外部導体１１ｂには複数の接触ピンＰ２、Ｐ３が取り付けられている。そして、測定時には接触ピンＰ１が測定ランド３に、接触ピンＰ１が第１の島状のランド４に、接触ピンＰ２が第２の島状のランド５にそれぞれ接触される。このプローブ１１はケーブル１２によって図示しない測定器に接続される。   The probe 11 is brought into contact with the measurement land 3 and the first and second island-like lands 4 and 5 at the time of measurement for evaluating the characteristics of the transmission / reception circuit 1. The probe 11 is a coaxial probe having a center conductor 11a as a hot end (signal input / output end) and an outer conductor 11b as a cold end (grounding portion), and a contact pin P1 is attached to the center conductor 11a. A plurality of contact pins P2 and P3 are attached to the outer conductor 11b. During measurement, the contact pin P1 is in contact with the measurement land 3, the contact pin P1 is in contact with the first island-like land 4, and the contact pin P2 is in contact with the second island-like land 5. The probe 11 is connected to a measuring instrument (not shown) by a cable 12.

各接触ピンＰ１〜Ｐ３がそれぞれ測定ランド３、第１の島状のランド４、第２の島状のランド５に接触された状態では、第２の島状のランド５も接地状態となるので、伝送線路６によって測定ランド３から第２の島状のランド５側をみたインピーダンスが理想的には無限大となるので、測定器から測定信号を送受信回路１に入力する際に整合回路９側の影響を受けない。また、送受信器２から測定器に信号を出力する際も同様である。また、同軸型のプローブを使用することで、接触部分のインピーダンスの乱れが少なくなる。   When the contact pins P1 to P3 are in contact with the measurement land 3, the first island-like land 4, and the second island-like land 5, respectively, the second island-like land 5 is also in a grounded state. The impedance of the transmission land 6 viewed from the measurement land 3 to the second island-like land 5 side is ideally infinite, so that when the measurement signal is input from the measuring instrument to the transmission / reception circuit 1, the matching circuit 9 side Not affected. The same applies when a signal is output from the transceiver 2 to the measuring instrument. In addition, the use of a coaxial probe reduces the disturbance of impedance at the contact portion.

また、送受信ユニットの実使用状態では、プローブ１１が各ランド３〜５に接触しないので第２の島状のランド５が接地されず、送受信回路１とアンテナ１０との間では、伝送線路６を介して信号の送受が行われる。   In the actual use state of the transmission / reception unit, the probe 11 does not contact the lands 3 to 5, so the second island-shaped land 5 is not grounded, and the transmission line 6 is connected between the transmission / reception circuit 1 and the antenna 10. Signals are transmitted and received through the network.

以上のように、本発明では、送受信回路２が構成される回路基板２に測定ランド３を設けると共に、測定ランド３の近傍に第１の島状のランド４、第２の島状のランド５を設けるだけであるので、送受信ユニットのコストを高めることなく簡単に測定ができる。   As described above, in the present invention, the measurement land 3 is provided on the circuit board 2 on which the transmission / reception circuit 2 is configured, and the first island-like land 4 and the second island-like land 5 are provided in the vicinity of the measurement land 3. Therefore, measurement can be easily performed without increasing the cost of the transmission / reception unit.

なお、プローブ１１は同軸型のプローブである必要はなく、少なくとも中心導体１１ａに相当するホット端と外部導体１１ｂに相当するコールド端とを有し、ホット端を測定ランド３に接触した際にコールド端が第１の島状のランド４と第２の島状のランド５に共に接触するものであればよい。また、接触ピンＰ１〜Ｐ３は接触を確実にするためのものであり、必ずしも必要ではない。   The probe 11 does not need to be a coaxial probe, and has at least a hot end corresponding to the center conductor 11a and a cold end corresponding to the outer conductor 11b. It is sufficient if the ends are in contact with both the first island-like land 4 and the second island-like land 5. The contact pins P1 to P3 are for ensuring contact and are not necessarily required.

本発明の送受信ユニットとその測定方法を説明するための概念図である。It is a conceptual diagram for demonstrating the transmission / reception unit of this invention, and its measuring method. 従来の送受信ユニットとその測定方法を説明するための概念図である。It is a conceptual diagram for demonstrating the conventional transmission / reception unit and its measuring method.

符号の説明Explanation of symbols

１：送受信回路
２：回路基板
３：測定ランド
４：第１の島状のランド
５：第２の島状のランド
６：伝送線路
７、８：配線パターン
９：整合回路
１０：アンテナ
１１：プローブ
１１ａ：中心導体
１１ｂ：外部導体
Ｐ１、Ｐ２、Ｐ３：接触ピン
1: Transmission / reception circuit 2: Circuit board 3: Measurement land 4: First island-shaped land 5: Second island-shaped land 6: Transmission line 7, 8: Wiring pattern 9: Matching circuit 10: Antenna 11: Probe 11a: center conductor 11b: outer conductor P1, P2, P3: contact pin

Claims (4)

送受信回路が構成された回路基板を有し、前記回路基板上には前記送受信回路の入出力端に接続されると共に、測定器に接続されたプローブのホット端が接触可能な測定ランドと、前記測定ランドの近傍に配置され、前記プローブのホット端が前記測定ランドに接触したときにコールド端が共に接触する第１及び第２の島状のランドとを設け、前記第１の島状のランドを前記回路基板内で接地すると共に、前記測定ランドと前記第２の島状のランドとを使用周波数に対応する波長の１／４の電気長を有する伝送線路で相互に接続し、前記第２の島状のランドをアンテナ接続用端子としたことを特徴とする送受信ユニット。 A circuit board configured with a transmission / reception circuit, connected to the input / output end of the transmission / reception circuit on the circuit board, and a measurement land that can be contacted by a hot end of a probe connected to a measuring instrument; A first and a second island-like land disposed near the measurement land, the cold ends of which contact with each other when the hot end of the probe contacts the measurement land; Is grounded within the circuit board, and the measurement land and the second island-shaped land are connected to each other by a transmission line having an electrical length of ¼ of the wavelength corresponding to the operating frequency, and the second A transmission / reception unit characterized in that an island-shaped land is used as an antenna connection terminal. 前記第１及び第２の島状ランドを前記測定ランドを囲むように前記測定ランドに対して同心的に配置したことを特徴とする請求項１に記載の送受信ユニット。 2. The transmission / reception unit according to claim 1, wherein the first and second island-like lands are arranged concentrically with the measurement land so as to surround the measurement land. 送受信回路が構成された回路基板上に前記送受信回路の入出力端に接続された測定ランドと、前記測定ランドの近傍に配置された第１及び第２の島状のランドとを設け、前記第１の島状のランドを前記回路基板内で接地すると共に、前記測定ランドと前記第２の島状のランドとを使用周波数に対応する波長の１／４の電気長を有する伝送線路で相互に接続し、前記第２の島状のランドをアンテナ接続用端子とし、測定器に接続されたプローブのホット端を前記測定ランドに接触させると共に、前記プローブのコールド端を前記第１及び第２の島状のランドに接触させ、前記測定器と前記送受信回路との間で測定用信号を入出力したことを特徴とする送受信ユニットの測定方法。 A measurement land connected to an input / output terminal of the transmission / reception circuit, and first and second island-like lands arranged in the vicinity of the measurement land are provided on a circuit board on which the transmission / reception circuit is configured, and the first One island-shaped land is grounded in the circuit board, and the measurement land and the second island-shaped land are mutually connected by transmission lines having an electrical length of ¼ of a wavelength corresponding to a use frequency. The second island-shaped land is used as an antenna connection terminal, the hot end of the probe connected to the measuring instrument is brought into contact with the measurement land, and the cold end of the probe is connected to the first and second terminals. A measurement method of a transmission / reception unit, wherein a measurement signal is input / output between the measuring instrument and the transmission / reception circuit in contact with an island-shaped land. 前記第１及び第２の島状ランドを前記測定ランドを囲むように前記測定ランドに対して同心的に配置したことを特徴とする請求項３に記載の送受信ユニットの測定方法。
4. The method of measuring a transmission / reception unit according to claim 3, wherein the first and second island lands are arranged concentrically with the measurement land so as to surround the measurement land.
JP2005034782A 2005-02-10 2005-02-10 Transceiver unit and measuring method of same Ceased JP2006222779A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014241557A (en) * 2013-06-12 2014-12-25 アルプス電気株式会社 Radio communication device, radio communication device inspection method, and radio communication device manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014241557A (en) * 2013-06-12 2014-12-25 アルプス電気株式会社 Radio communication device, radio communication device inspection method, and radio communication device manufacturing method

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