201143202 六、發明說明： 【發明所屬之技術顧域】 ⑽01] 本發明係有關於一種天線單元及其儲能裝置，特別有關 於一種適應性角度相位天線單元及其儲能裝置。 [先前技術] [0002] 傳統上，為 了使RFID (Radio Frequency Identification ， 無線射頻識別系統） kg(電子標籤） 有比較 寬的接收角度，在RFID tag中’會使用低指向性天線以 達到較寬的接收角度。然而，此類天線雖然接收角度較 〇 寬，但是會造成接收增益較低的缺點。 ........201143202 VI. Description of the Invention: [Technical Fields of the Invention] (10) 01 The present invention relates to an antenna unit and an energy storage device thereof, and more particularly to an adaptive angle phase antenna unit and an energy storage device thereof. [Prior Art] [0002] Traditionally, in order to make RFID (Radio Frequency Identification) kg (electronic tag) have a wide receiving angle, a low directivity antenna is used in the RFID tag to achieve a wide range. The receiving angle. However, such an antenna has a disadvantage that the receiving angle is lower, although the receiving angle is wider. ........
[0003] 因此，美國專利公開US 2007/0176824 A1專利案（專 利文獻1)及美國專利公告US 7268517 B2專利案（專利 文獻2)揭露可以使用相位陣列（Phase Array)來動態地 改變天線的指向性，以增加天線的增益。此類天線可以 兼顧指向性及接收角度，然而，因為相位陣列的系統需 要比較複雜的控制電路，且這些電路的耗電問題會使得 Q 相位陣列系統無法使用在RFIDltag上。因此，多半的相 位陣列是使用在RFID的讀取器中。 [0004]專利文獻1中雖然有揭露在RFID tag中加上控制電路以 及光束操控（Beam Steering)的系統，但是此系統架構 過於耗電，因此只能實現在主動式RFID tag中。 [0005] 099116749 【發明内容】 本發明提供一種適應性角度相位天線單元及其儲能裝置 ，以克服傳統RFID tag的接收靈敏度、接收角度範圍以 及控制電路的功率消耗問題，由於低耗電，又不需要額 表單編號A0101 第3頁/共17頁 0992029765-0 201143202 外的運算單元，因此可以使用在被動式的RFID tag之中 〇 [0006] 本發明之第一態樣提供一種N個適應性角度相位天線單元 ，其適應性角度相位天線單元包含： [0007] —第一相位補償器，用以接收一第一相位差信號以相位 移一第一天線之一第一相位角無線信號； [0008] 一第一相位差偵測器，用以比較經相位移之該第一相位 角無線信號與一第二天線之一第二相位角無線信號之相 位差，以產生該第一相位差信號；以及 [0009] 一第一信號加成器，用以相加經相位移之該第一相位角 無線信號與該第二相位角無線信號，以得到一第一加成 無線信號。 [0010] 根據本發明之第一態樣之適應性角度相位天線單元，其 更包含： [0011] 第N相位補償器，用以接收第N相位差信號以相位移第N-1 加成無線信號， [0012] 第N相位差偵測器，用以比較經相位移之第N-1加成無線 信號與第N + 1天線之第N + 1相位角無線信號之相位差，以 產生第N相位差信號；以及 [0013] 第N信號加成器，用以相加經相位移之第N-1加成無線信 號與第N+1相位角無線信號，以得到第N加成無線信號； [0014] 其中，N係大於等於2。 099116749 表單編號A0101 第4頁/共17頁 0992029765-0 201143202 [0015] 根據本發明之第一態樣之適應性角度相位天線單元，其 中，該第一相位差偵測器及第N相位差偵測器包含： [0016] 相位比較器，用以比較經相位移之該第一相位角無線信 號與一第二相位角無線信號之相位差，以產生一第一相 位差值，或比較經相位移之第N-1加成無線信號與第N + 1 相位角無線信號之相位差，以產生第N相位差值； [0017] 充電泵，用以將該第一相位差值或第N相位差值轉換成一 第一相位差值電壓或第N相位差值電壓；以及 Ο [0018] 低通濾波器，用以濾除該第一相位差值電壓或第N相位差 值電壓的高頻雜訊，以得到該第一相位差信號或第N相位 差信號。 [0019] 本發明之第二態樣提供一種適應性角度相位天線單元之 儲能裝置，其包含： [0020] 一第一相位補償器，用以接收一第一相位差信號以相位 移一第一天線之一第一相位角無線信號；[0003] Thus, U.S. Patent Publication No. US 2007/0176824 A1 (Patent Document 1) and U.S. Patent No. 7,528,517 B2 (Patent Document 2) disclose that a phase array (Phase Array) can be used to dynamically change the orientation of an antenna. Sex to increase the gain of the antenna. Such antennas can accommodate both directivity and reception angle. However, because phase array systems require more complex control circuits, and the power consumption of these circuits can make the Q phase array system unusable on RFIDltag. Therefore, most of the phase arrays are used in RFID readers. [0004] Although Patent Document 1 discloses a system in which a control circuit and a Beam Steering are added to an RFID tag, the system architecture is too power-consuming, and thus can only be implemented in an active RFID tag. [0005] The invention provides an adaptive angle phase antenna unit and an energy storage device thereof, so as to overcome the receiving sensitivity of the conventional RFID tag, the receiving angle range and the power consumption of the control circuit, due to low power consumption, The arithmetic unit outside the form number A0101, page 3/17 pages 0992029765-0 201143202 is not required, so it can be used in the passive RFID tag. [0006] The first aspect of the invention provides a N adaptive angle. The phase antenna unit, the adaptive angle phase antenna unit comprises: [0007] a first phase compensator for receiving a first phase difference signal to phase shift a first phase angle wireless signal of a first antenna; a first phase difference detector for comparing a phase difference between the phase shifted wireless signal of the first phase angle and a second phase angle wireless signal of a second antenna to generate the first phase difference And [0009] a first signal adder for adding the phase-shifted first phase angle wireless signal and the second phase angle wireless signal to obtain a first Into a wireless signal. [0010] The adaptive angle phase antenna unit according to the first aspect of the present invention further includes: [0011] an Nth phase compensator for receiving the Nth phase difference signal to phase shift the N-1th addition wireless a signal, [0012] an Nth phase difference detector for comparing a phase difference between the phase-shifted N-1th addition wireless signal and the N+1th phase angle wireless signal of the N+1 antenna to generate a N phase difference signal; and [0013] an Nth signal adder for adding the phase shifted N-1th addition wireless signal and the (N+1)th phase angle wireless signal to obtain an Nth addition wireless signal [0014] wherein, the N system is greater than or equal to 2. 099116749 Form No. A0101 Page 4 of 17 0992029765-0 201143202 [0015] According to a first aspect of the present invention, an adaptive angle phase antenna unit, wherein the first phase difference detector and the Nth phase difference detector The detector includes: [0016] a phase comparator for comparing a phase difference between the phase-shifted first phase angle wireless signal and a second phase angle wireless signal to generate a first phase difference value, or comparing a phase phase a phase difference between the N-1th addition wireless signal of the displacement and the N+1th phase angle wireless signal to generate an Nth phase difference value; [0017] a charge pump for using the first phase difference value or the Nth phase Converting the difference into a first phase difference voltage or an Nth phase difference voltage; and Ο [0018] a low pass filter for filtering high frequency impurities of the first phase difference voltage or the Nth phase difference voltage The signal is obtained to obtain the first phase difference signal or the Nth phase difference signal. [0019] A second aspect of the present invention provides an energy storage device for an adaptive angular phase antenna unit, including: [0020] a first phase compensator for receiving a first phase difference signal to phase shift a first One of the first phase angle wireless signals of one antenna;
[0021] 一第一相位差偵測器，用以比較經相位移之該第一相位 角無線信號與一第二天線之一第二相位角無線信號之相 位差，以產生該第一相位差信號；以及 [0022] 一第一信號加成器，用以相加經相位移之該第一相位角 無線信號與該第二相位角無線信號，以得到一第一加成 無線信號； [0023] 第N相位補償器，用以接收第N相位差信號以相位移第N-1 加成無線信號； 099116749 表單編號A0101 第5頁/共17頁 0992029765-0 201143202 [0024] 第N相位差偵測器，用以比較經相位移之第N-1加成無線 信號與第N + 1天線之第N + 1相位角無線信號之相位差，以 產生第N相位差信號； [0025] 第N信號加成器，用以相加經相位移之第N-1加成無線信 號與第N + 1相位角無線信號，以得到第N加成無線信號； [0026] —整流器，用以將第N加成無線信號整流成一直流功率信 號；以及 [0027] —充電式儲能裝置，用以接收該直流功率信號對其充電 儲能； [0028] 其中，N係大於等於2。 [0029] 根據本發明之第二態樣之適應性角度相位天線單元之儲 能裝置，其中，該第一相位差偵測器及第N相位差偵測器 包含： [0030] 相位比較器，用以比較經相位移之該第一相位角無線信 號與一第二相位角無線信號之相位差，以產生一第一相 位差值，或比較經相位移之第N-1加成無線信號與第N + 1 相位角無線信號之相位差，以產生第N相位差值； [0031] 充電泵，用以將該第一相位差值或第N相位差值轉換成一 第一相位差值電壓或第N相位差值電壓；以及 [0032] 低通濾波器，用以濾除該第一相位差值電壓或第N相位差 值電壓的高頻雜訊，以得到該第一相位差信號或第N相位 差信號。 [0033] 根據本發明之第二態樣之適應性角度相位天線單元之儲 099116749 表單編號A0101 第6頁/共17頁 0992029765-0 201143202 能装·置，1 φ , + /、 该充電式儲能裝置係為超電容、鈕質電 容及充電式電池之其中—者。 【實施方式】 [0034] [0035] Ο [0036] Ο [0037] [0038] 來者 附圖’以說明本發明之最佳實施例。 圖1為本發日月之適應性肖度相位天線單元之儲能裝置的方 塊圖。在^ 丄 σ Τ ’由相位補償器10、相位差偵測器12及信 '。加成器14構成第一組適應性角度相位天線單元1〇〇，由 補償益16、相位差偵測器18及信號加成器20構成第 一組適應性角度相位天線單元1_，以此類推並由相位補 償 2 9 . ° 、相位差侦測器24及信號加成器26構成第N組適應 角度相位天線單元1〇4。本發明構成適應性角度相位天線 οσ 一 早疋的數量不侷限於本實施例，可依實際需求而增減適 應性角度相位天線單元的數量。 相位補償器10接收由相位差偵測器1 2所產生的相位差信 號’以相位移由相位補償器1(>所接收之天線ΑΝΤ1之相位 角無線信號。當相位差偵測器以所產生的相位差信號為〇 時’相位補償器1 〇已將天線ΑΝΤ1之相位角無線信號相位 移成與ΑΝΤ2之相位角無線信號為同相位。 相位差偵測器12比較經相位移之天線a Ν Τ1之相位角無線 信號與天線ANT2之相位角無線信號之相位差，當經相位 移之天線ΑΝΤΙ之相位角無線信號與天線ANT2之相位角無 線信號產生相位差時，相位差偵測器12就會產生第一組 適應性角度相位天線單元100的相位差信號。 信號加成器14相加經相位移之天線ΑΝΤΙ之相位角無線信 099116749 表單編號Α0101 第7頁/共17頁 0992029765-0 201143202 號與天線ANT2之相位角無線信號，以得到第一組適應性 角度相位天線單元100的加成無線信號。當經相位移之天 線ΑΝΤΙ之相位角無線信號與ANT2之相位角無線信號為同 相位時，經由信號加成器1 4相加經相位移之天線A Ν Τ1之 相位角無線信號與天線ANT2之相位角無線信號所獲得的 加成無線信號會是最大。 [0039] 相位補償器1 6接收由相位差偵測器1 8所產生的相位差信 號，以相位移由相位補償器16所接收之信號加成器14相 加所得的加成無線信號。當相位差偵測器18所產生的相 位差信號為0時，相位補償器16已將信號加成器14相加所 得的加成無線信號相位移成與ANT3之相位角無線信號為 同相位。 [0040] 相位差偵測器1 8比較經相位移之信號加成器1 4相加所得 的加成無線信號與天線ANT3之相位角無線信號之相位差 ，當經相位移之信號加成器14相加所得的加成無線信號 與天線ANT3之相位角無線信號產生相位差時，相位差偵 測器18就會產生第二組適應性角度相位天線單元102的相 位差信號。 [0041] 信號加成器20相加經相位移之信號加成器14相加所得的 加成無線信號與天線ANT3之相位角無線信號，以得到第 二組適應性角度相位天線單元102的加成無線信號。當經 相位移之信號加成器14相加所得的加成無線信號與ANT3 之相位角無線信號為同相位時，經由信號加成器2 0相加 經相位移之信號加成器14相加所得的加成無線信號與天 線ANT3之相位角無線信號所獲得的加成無線信號會是最 099116749 表單編號A0101 第8頁/共17頁 0992029765-0 201143202 大0 [0042] [0043] Ο 同樣地相位補償器22接收由相位差偵測器⑽斤產生的 相位差信號’以相位移由相位補償㈣所接收之第Η信 號加成器（未圖示）相加所得的加成無線信號。當相位差 债測器24所產生的相位差信號為〇時，相位補償器μ已將 第N-1信號加成器相加所加成無線信號相位移成與 ANTN+1之相位角無線信號為同相位。 相位差偵測器24比較經相位移之第N]信號加成器相加所 得的加成無線信號與天線ANmi之相位角無線信號之相 位差’當經相位移之第N]信號加成器14相加所得的 無線信號與天線ANTN+ i之相㈣無線信號產生相位差時 ，相位差偵測器24就會產生第N組適應性角度相位天線 元1 0 4的相位差信號。 一單 [0044] ❹ 信號加成器26相加經相位移〜1伯肌训战吾 的加成無線信號與天棒ANTN + 1之相位角無j線信號’ 到第N組適應性角度相位天線單元丨〇 4的加成無線信/得 當經相位移之第N-1信號加成器相加所得的加成無線俨。 與ANTN+1之相位角無線信號為同相位時，經由信婕0沒 器26相加經相位移之第N-1信號加成器相加所得的加璣 線信號與天線ANTN + 1之相位角無線信號所獲得的加成J 線信號會是最大。 戍每 第N-1信號加成器相加所得 號 [0045] 一整流器28將信號加成器26相加經相位移之第i彳言藏 成器相加所得的加成無線信號與天線ΑΝΤΝ + 1之相&』角為 〜τι 線信號所得的加成無線信號整流成一直流功率信 099116749 表單編唬A0101 第9頁/共17頁 201143202 [0046] 一充電式儲能裝置3 0接收經整流後的直流功率信號以對 其充電儲能，進而由充電式儲能裝置30供應電源給負載 32。其中，充電式儲能裝置30係為超電容、钽質電容或 充電式電池等。 [0047] 圖2為本發明之相位差偵測器的方塊圖。圖1中之相位差 偵測器12、18、24係由圖2之相位比較器34、充電泵 (Charge Pump) 36及低通慮波器38所組成。 [0048] 相位比較器34比較一參考相位（諸如經相位移之ANT 1之相 位角無線信號、經相位移之信號加成器16相加所得的加 成無線信號.....及經相位移之第N-1信號加成器相加所 得的加成無線信號）與一待測相位（諸如ANT2之相位角無 線信號、ANT3之相位角無線信號.....及ANTN+1之相位 角無線信號）之相位差，以產生分別對應於每一組適應性 角度相位天線單元100、102、104之一相位差值。 [0049] 充電泵36將對應於每一組適應性角度相位天線單元100、 1 0 2、1 0 4之相位差值分別轉換成一相位差值電壓。低通 濾波器3 8分別濾除對應於每一組適應性角度相位天線單 元100、102、104之相位差值電壓的南頻雜訊，以得到 分別輸入到相位補償器10、16、22的相位差信號。 [0050] 如上所述，本實施例之系統架構係由N +1個天線構成相位 陣列天線，當輸入到天線（諸如A N T1、A N T 2、…、 ANTN + 1)之功率的角度不同時，天線之間會存在一個相位 差。因此，加入相位比較器3 4，配合充電泵3 6及低通濾、 波器3 8，比較出相鄰天線的相位差信號，再將此信號回 099116749 表單編號A0101 第10頁/共17頁 0992029765-0 201143202 饋到相位補償器1 0、〗6、22，藉以使兩天線之間的相位 一致。 [005〗]由於本實施例之系統架構是被動地將天線所收到的訊號 做處理’因此可以自動地尋找適合的接收角度。而且， 相位比較器34、充電泵36及低通濾波器38都是非常低功 率消耗的元件，因此適合用在被動的RFID tag上。 [0052]本發明之優點係提供一種適應性角度相位天線單元及其 儲忐裝置’以克服傳統RFID tag的接收靈敏度、接收角 〇 度範圍以及控制電路的功率消耗間題，由於低耗電’又 不需要額外的琿算單元，因此可丛傲用在被動式的RFID tag之中》 [0_絲本發明已參照料具體例及舉例軸料述如上， 惟其應不被視為係限制性者。熟悉本技藝者對其形熊 具體例之内容做各種修改、省略及變化，均不離門本 明之申請專利範圍之所主張範圍。 开發 【圖式簡單說明】 Ο [0054]圖1為本發明之適應性角度相位天線單元之儲能裴置、 塊圖；以及 的方 [0055] 圖2為本發明之相位差偵測器的方塊圖。 【主要元件符號說明】 [0056] 10相位補償器 [0057] 1 2相位差偵測器 [0058] 14信號加成器 099116749 表單煸號A0101 第11頁/共17頁 0992029765-0 201143202 [0059] 16相位補償器 [0060] 18 相位差偵測器 [0061] 20 信號加成器 [0062] 22 相位補償器 [0063] 24 相位差偵測器 [0064] 26 信號加成器 [0065] 28 整流器 [0066] 30 充電式儲能裝置 [0067] 32 負載 [0068] 34 相位比較器 [0069] 36 充電泵 [0070] 38 低通渡波器 [0071] 100 丨第一組適應性角度相位天線單元 [0072] 102 :第二組適應性角度相位天線單元 [0073] \04 丨第N組適應性角度相位天線單元 099116749 表單編號A0101 第12頁/共17頁 0992029765-0[0021] a first phase difference detector for comparing a phase difference between the phase shifted wireless signal of the first phase angle and a second phase angle wireless signal of a second antenna to generate the first phase a difference signal; and [0022] a first signal adder for adding the phase-shifted first phase angle wireless signal and the second phase angle wireless signal to obtain a first additive wireless signal; 0023] an Nth phase compensator for receiving an Nth phase difference signal to phase shift the N-1th addition wireless signal; 099116749 Form No. A0101 Page 5 of 17 0992029765-0 201143202 [0024] Nth phase difference a detector for comparing a phase difference between the phase-shifted N-1th addition wireless signal and the N+1th phase angle wireless signal of the N+1 antenna to generate an Nth phase difference signal; [0025] An N signal adder for adding the phase-shifted N-1th addition wireless signal and the N+1th phase angle wireless signal to obtain an Nth addition wireless signal; [0026] a rectifier for The Nth addition wireless signal is rectified into a DC power signal; and [0027] - the rechargeable energy storage device And receiving the DC power signal to charge and store energy thereof; wherein the N system is greater than or equal to 2. [0029] The energy storage device of the adaptive angle phase antenna unit according to the second aspect of the present invention, wherein the first phase difference detector and the Nth phase difference detector comprise: [0030] a phase comparator, Comparing a phase difference between the phase-shifted first phase angle wireless signal and a second phase angle wireless signal to generate a first phase difference value, or comparing the phase-shifted N-1th-added wireless signal with a phase difference of the N + 1 phase angle wireless signal to generate an Nth phase difference value; [0031] a charge pump for converting the first phase difference value or the Nth phase difference value into a first phase difference voltage or a Nth phase difference voltage; and [0032] a low pass filter for filtering high frequency noise of the first phase difference voltage or the Nth phase difference voltage to obtain the first phase difference signal or N phase difference signal. [0033] Storage of an adaptive angular phase antenna unit according to a second aspect of the present invention 099116749 Form No. A0101 Page 6 of 17 0992029765-0 201143202 Capable, 1 φ , + /, the rechargeable storage The device can be used as a super capacitor, a button capacitor or a rechargeable battery. [Embodiment] [0035] [0038] [0038] [0038] The accompanying drawings are used to illustrate the preferred embodiments of the invention. Fig. 1 is a block diagram of an energy storage device of an adaptive Xiaodu phase antenna unit of the present day and month. At ^ 丄 σ Τ ', the phase compensator 10, the phase difference detector 12, and the signal '. The adder 14 constitutes a first set of adaptive angular phase antenna elements 1 〇〇, and the compensation benefit 16, the phase difference detector 18 and the signal adder 20 constitute a first set of adaptive angular phase antenna elements 1_, and so on. And the phase compensation 2 9 . , the phase difference detector 24 and the signal adder 26 constitute an Nth group of adaptive angle phase antenna units 1〇4. The number of adaptive angle phase antennas οσ 疋 一 is not limited to this embodiment, and the number of adaptive angle phase antenna units can be increased or decreased according to actual needs. The phase compensator 10 receives the phase difference signal generated by the phase difference detector 12 by phase shifting by the phase compensator 1 (> the phase angle wireless signal of the antenna ΑΝΤ1 received. When the phase difference detector is used When the generated phase difference signal is 〇, the phase compensator 1 相 has phase-shifted the phase angle wireless signal of the antenna ΑΝΤ1 into the same phase as the phase angle wireless signal of ΑΝΤ 2. The phase difference detector 12 compares the phase-shifted antenna a The phase difference between the phase angle wireless signal of the Τ1 and the phase angle wireless signal of the antenna ANT2, when the phase angle wireless signal of the phase-shifted antenna 产生 and the phase angle wireless signal of the antenna ANT2 generate a phase difference, the phase difference detector 12 The phase difference signal of the first set of adaptive angular phase antenna elements 100 is generated. The signal adder 14 adds the phase-shifted antenna 相位 phase angle wireless letter 099116749 Form number Α 0101 Page 7 / Total 17 pages 0992029765-0 Phase angle wireless signal of antenna No. 201143202 and antenna ANT2 to obtain an additive wireless signal of the first group of adaptive angular phase antenna elements 100. When the phase angle wireless signal of the Ι2 is in phase with the phase angle wireless signal of the ANT2, the phase angle wireless signal of the phase-shifted antenna A Ν 相1 and the phase angle wireless signal of the antenna ANT2 are obtained by the signal adder 14 The add-on wireless signal will be the largest. [0039] The phase compensator 16 receives the phase difference signal generated by the phase difference detector 18, and phase shifts the signal adder 14 phase received by the phase compensator 16. The resulting added wireless signal is added. When the phase difference signal generated by the phase difference detector 18 is 0, the phase compensator 16 has phase-shifted the added wireless signal obtained by adding the signal adder 14 to the ANT3. The phase angle wireless signal is in phase. [0040] The phase difference detector 18 compares the phase difference between the phased wireless signal obtained by the phase shifting signal adder 14 and the phase angle wireless signal of the antenna ANT3. When the addition wireless signal added by the phase shifting signal adder 14 produces a phase difference with the phase angle wireless signal of the antenna ANT3, the phase difference detector 18 generates a second set of adaptive angular phase antenna units 102. Phase difference signal [0041] The signal adder 20 adds the added phase wireless signal of the phase-shifted signal adder 14 and the phase angle wireless signal of the antenna ANT3 to obtain the second set of adaptive angular phase antenna units 102. Adding a wireless signal. When the added wireless signal obtained by adding the phase-shifted signal adder 14 is in phase with the phase angle wireless signal of ANT3, the phase-shifted signal is added via the signal adder 20 The addition wireless signal obtained by adding the resulting wireless signal to the phase angle wireless signal of the antenna ANT3 is the most 099116749 Form No. A0101 Page 8 of 17 0992029765-0 201143202 Big 0 [0042] [ 0043] Ο Similarly, the phase compensator 22 receives the phase difference signal generated by the phase difference detector (10), and adds the phase signal (not shown) received by the phase compensation (4). Into the wireless signal. When the phase difference signal generated by the phase difference detector 24 is 〇, the phase compensator μ has phase-added the N-1 signal adder to add the wireless signal phase to the phase angle wireless signal with ANTN+1. It is in phase. The phase difference detector 24 compares the phase difference between the phased wireless signal obtained by adding the phase shifted Nth signal adder and the phase angle wireless signal of the antenna ANmi 'when the phase shifted Nth signal adder When the wireless signal obtained by the addition of 14 and the phase of the antenna ANTN+i (4) generate a phase difference, the phase difference detector 24 generates a phase difference signal of the Nth group of adaptive angular phase antenna elements 104. A single [0044] 信号 signal adder 26 adds phase shifting ~1 肌 训 训 的 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾 吾The addition wireless signal of the antenna unit 丨〇4/additional wireless 得 obtained by adding the phase-shifted N-1th signal adder. When the phase angle wireless signal of the ANPN+1 is in phase, the phase of the twisted line signal and the antenna ANTN + 1 added by the phase shifting N-1 signal adder is added via the signal buffer The added J line signal obtained by the angular wireless signal will be the largest.戍Additional number of each N-1th signal adder [0045] A rectifier 28 adds the adder wireless signal and antenna obtained by adding the phase adder to the phase shifter by the phase adder 26 The +1 phase & 』 angle is the ~τι line signal resulting in the addition of the wireless signal to a constant current power signal 099116749 Form Compilation A0101 Page 9 of 17 201143202 [0046] A charging energy storage device 30 receiving The rectified DC power signal is charged to store energy, and the rechargeable energy storage device 30 supplies power to the load 32. The rechargeable energy storage device 30 is a super capacitor, a tantalum capacitor or a rechargeable battery. 2 is a block diagram of a phase difference detector of the present invention. The phase difference detectors 12, 18, 24 of Figure 1 are comprised of a phase comparator 34, a charge pump 36 and a low pass filter 38 of Figure 2 . [0048] The phase comparator 34 compares a reference phase (such as the phase angle wireless signal of the phase shifted ANT 1 , the addition wireless signal obtained by the phase shifting signal adder 16 ...) and the phase The addition of the N-1 signal adder of the displacement to the phase to be measured (such as the phase angle wireless signal of ANT2, the phase angle wireless signal of ANT3, and the phase of ANTEN+1) The phase difference of the angular wireless signals) to produce phase differences corresponding to one of the sets of adaptive angular phase antenna elements 100, 102, 104, respectively. [0049] The charge pump 36 converts the phase difference values corresponding to each set of adaptive angular phase antenna elements 100, 102, 104, respectively, into a phase difference voltage. The low pass filter 38 filters the south frequency noise corresponding to the phase difference voltage of each set of adaptive angular phase antenna elements 100, 102, 104, respectively, to obtain the respective input to the phase compensators 10, 16, 22 Phase difference signal. [0050] As described above, the system architecture of the present embodiment is a phase array antenna composed of N+1 antennas, and when the angles of power input to the antennas (such as AN T1, ANT 2, ..., ANTN + 1) are different, There will be a phase difference between the antennas. Therefore, the phase comparator 34 is added, the phase difference signal of the adjacent antenna is compared with the charge pump 36 and the low-pass filter, and the signal is returned to 099116749. Form No. A0101 Page 10 of 17 0992029765-0 201143202 Feeds the phase compensator 1 0, 〖6, 22, so that the phase between the two antennas is consistent. [005] Since the system architecture of this embodiment passively processes the signals received by the antennas, it is therefore possible to automatically find a suitable reception angle. Moreover, phase comparator 34, charge pump 36, and low pass filter 38 are all very low power consuming components and are therefore suitable for use on passive RFID tags. [0052] The advantage of the present invention is to provide an adaptive angular phase antenna unit and its storage device 'to overcome the traditional RFID tag receiving sensitivity, the receiving angle range and the power consumption of the control circuit, due to low power consumption' There is no need for an additional calculation unit, so it can be used in passive RFID tags. [0_Silk This invention has been described above with reference to specific examples and examples, but it should not be regarded as a restriction. . Those skilled in the art will be able to make various modifications, omissions and changes to the contents of the specific examples of the bears, and do not depart from the claimed scope of the patent application scope. [FIG. 1] The energy storage device and block diagram of the adaptive angle phase antenna unit of the present invention; and [0025] FIG. 2 is a phase difference detector of the present invention. Block diagram. [Main component symbol description] [0056] 10 phase compensator [0057] 1 2 phase difference detector [0058] 14 signal adder 099116749 Form nickname A0101 Page 11 of 17 0992029765-0 201143202 [0059] 16 Phase Compensator [0060] 18 Phase Difference Detector [0061] 20 Signal Adder [0062] 22 Phase Compensator [0063] 24 Phase Difference Detector [0064] 26 Signal Adder [0065] 28 Rectifier 30 Charging Energy Storage Device [0067] 32 Load [0068] 34 Phase Comparator [0069] 36 Charge Pump [0070] 38 Low Pass Ferry [0071] 100 丨 First Group of Adaptive Angle Phase Antenna Units [0066] 0072] 102 : Second set of adaptive angular phase antenna elements [0073] \04 丨 Group N adaptive angular phase antenna unit 099116749 Form No. A0101 Page 12 of 17 0992029765-0