本申請涉及半導(dao)體應用,具(ju)體地(di),涉及一種射(she)頻放大器(qi)電路。
背景技術:
1、一種基于sic的(de)(de)fet器件具(ju)有(you)良好(hao)的(de)(de)直(zhi)流特性(xing)(xing)和(he)(he)射(she)頻(pin)特性(xing)(xing),該器件具(ju)有(you)高的(de)(de)工作電(dian)(dian)(dian)(dian)(dian)(dian)壓和(he)(he)高功(gong)率(lv)密度。這些特性(xing)(xing)在(zai)(zai)射(she)頻(pin)大(da)功(gong)率(lv)應用中具(ju)有(you)得天獨厚的(de)(de)優(you)越性(xing)(xing)。但是目前(qian)專利(專利號(hao):cn?115567017a)應用主要是在(zai)(zai)單(dan)路器件,如圖1所示。該電(dian)(dian)(dian)(dian)(dian)(dian)路是個典型的(de)(de)單(dan)管(guan)電(dian)(dian)(dian)(dian)(dian)(dian)路,該電(dian)(dian)(dian)(dian)(dian)(dian)路:包括sic場(chang)效(xiao)應管(guan)m1、靜態(tai)的(de)(de)柵極偏(pian)(pian)置(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)路、靜態(tai)的(de)(de)漏(lou)極偏(pian)(pian)置(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)路、射(she)頻(pin)輸入匹(pi)配電(dian)(dian)(dian)(dian)(dian)(dian)路、射(she)頻(pin)輸出匹(pi)配電(dian)(dian)(dian)(dian)(dian)(dian)路組成(cheng)。sic場(chang)效(xiao)應管(guan)m1通過柵極偏(pian)(pian)置(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)路和(he)(he)漏(lou)極偏(pian)(pian)置(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)路加電(dian)(dian)(dian)(dian)(dian)(dian)讓(rang)器件開啟工作。通過調節(jie)射(she)頻(pin)輸入匹(pi)配電(dian)(dian)(dian)(dian)(dian)(dian)路和(he)(he)射(she)頻(pin)輸出匹(pi)配電(dian)(dian)(dian)(dian)(dian)(dian)路讓(rang)器件工作在(zai)(zai)合適的(de)(de)狀(zhuang)態(tai),完成(cheng)對射(she)頻(pin)輸入信號(hao)的(de)(de)放大(da)功(gong)能(neng)。其中,fet器件的(de)(de)全稱是場(chang)效(xiao)應管(guan)(field?effecttransistor),sic是碳化硅。
2、上述(shu)現有專利(專利號:cn115567017a)中,是一個(ge)典(dian)型(xing)的單管(guan)功(gong)放(fang),射頻輸(shu)入信號通(tong)過(guo)一個(ge)sic場(chang)(chang)效(xiao)(xiao)應管(guan)m1進(jin)行放(fang)大,由(you)于sic場(chang)(chang)效(xiao)(xiao)應管(guan)m1放(fang)大能力受限于sic場(chang)(chang)效(xiao)(xiao)應管(guan)m1自(zi)身性能,所以一個(ge)sic場(chang)(chang)效(xiao)(xiao)應管(guan)m1放(fang)大能力肯(ken)定不(bu)如多個(ge)sic場(chang)(chang)效(xiao)(xiao)應管(guan)m1并(bing)列(lie)效(xiao)(xiao)果好(hao)。
3、但是圖1的電路實(shi)現(xian)多(duo)個sic場(chang)效應管m1并聯只(zhi)有兩種方式(shi):
4、第一種方式(shi):sic場效應管(guan)m1并聯,匹(pi)配電路(即射頻輸(shu)入匹(pi)配電路和射頻輸(shu)出匹(pi)配電路)不(bu)變;
5、第二種方式:sic場效應(ying)管m1和匹(pi)配(pei)電路(lu)(即射頻輸(shu)入匹(pi)配(pei)電路(lu)和射頻輸(shu)出匹(pi)配(pei)電路(lu))一(yi)起并(bing)聯(lian)。
6、針對(dui)第一種方(fang)式的情況,在應用中會增(zeng)加匹配難度,而且這樣的使用sic場效(xiao)應管m1很容易因(yin)為不平(ping)衡而造(zao)成自(zi)激(ji),增(zeng)加應用的風險。
7、對于第(di)二種方式的(de)(de)情況,在應用(yong)中會造成電(dian)路(lu)(lu)很復雜,而且電(dian)路(lu)(lu)級合路(lu)(lu)對單獨一路(lu)(lu)的(de)(de)端口阻抗要(yao)求較高(已經(jing)不是標準(zhun)的(de)(de)50ω),這樣(yang)單路(lu)(lu)調(diao)試難度增大(因(yin)為測試系統是標準(zhun)的(de)(de)50ω)。因(yin)此在現(xian)有(you)專利電(dian)路(lu)(lu)上要(yao)完(wan)成更(geng)大功率(lv)等級的(de)(de)應用(yong),就需要(yao)采用(yong)新的(de)(de)匹配電(dian)路(lu)(lu)。
8、在背景(jing)技術中(zhong)公開的(de)上述信(xin)息僅用于(yu)加(jia)強對本(ben)申請(qing)的(de)背景(jing)的(de)理解,因此其可(ke)能(neng)包含(han)沒(mei)有形成為本(ben)領域(yu)普通技術人員所(suo)知曉的(de)現有技術的(de)信(xin)息。
技術實現思路
1、本(ben)申請實施例(li)提供了一種射(she)頻放大(da)器(qi)電路,以解(jie)決傳統的(de)射(she)頻放大(da)器(qi)電路的(de)功(gong)率不足以及受諧波(bo)影響較大(da)的(de)技術(shu)問題(ti)。
2、本申請實施例提供了一種(zhong)射頻放(fang)大器電路,包括:
3、射(she)頻輸(shu)入匹(pi)配電路,輸(shu)入為(wei)第一(yi)正(zheng)弦波,輸(shu)出為(wei)相位(wei)差為(wei)180度(du)的兩個(ge)第三正(zheng)弦波;
4、第(di)(di)一場(chang)效應(ying)管q21和(he)(he)第(di)(di)二(er)場(chang)效應(ying)管q22,第(di)(di)一場(chang)效應(ying)管q21和(he)(he)第(di)(di)二(er)場(chang)效應(ying)管q22的源極均(jun)接(jie)地(di),第(di)(di)一場(chang)效應(ying)管和(he)(he)第(di)(di)二(er)場(chang)效應(ying)管的柵極分別與所(suo)述射頻(pin)輸入匹配(pei)電路連(lian)接(jie)以接(jie)入兩(liang)個第(di)(di)三正(zheng)弦波,第(di)(di)一場(chang)效應(ying)管和(he)(he)第(di)(di)二(er)場(chang)效應(ying)管的漏極輸出(chu)為兩(liang)個第(di)(di)四正(zheng)弦波;
5、射(she)(she)頻(pin)輸(shu)出(chu)匹(pi)配(pei)電(dian)(dian)路(lu)(lu),所(suo)(suo)述(shu)射(she)(she)頻(pin)輸(shu)出(chu)匹(pi)配(pei)電(dian)(dian)路(lu)(lu)包括(kuo)輸(shu)出(chu)效率(lv)(lv)優化(hua)(hua)(hua)(hua)電(dian)(dian)路(lu)(lu);所(suo)(suo)述(shu)輸(shu)出(chu)效率(lv)(lv)優化(hua)(hua)(hua)(hua)電(dian)(dian)路(lu)(lu)包括(kuo):輸(shu)出(chu)優化(hua)(hua)(hua)(hua)用(yong)電(dian)(dian)感(gan)l31和(he)輸(shu)出(chu)優化(hua)(hua)(hua)(hua)用(yong)可調(diao)電(dian)(dian)容c30,輸(shu)出(chu)優化(hua)(hua)(hua)(hua)用(yong)電(dian)(dian)感(gan)l31一端和(he)輸(shu)出(chu)優化(hua)(hua)(hua)(hua)用(yong)可調(diao)電(dian)(dian)容c30的(de)一端連接,輸(shu)出(chu)優化(hua)(hua)(hua)(hua)用(yong)電(dian)(dian)感(gan)l31另一端和(he)輸(shu)出(chu)優化(hua)(hua)(hua)(hua)用(yong)可調(diao)電(dian)(dian)容c30的(de)另一端分別與第(di)一場效應管(guan)(guan)的(de)漏(lou)(lou)極和(he)第(di)二場效應管(guan)(guan)的(de)漏(lou)(lou)極連接以接入兩(liang)個第(di)四正(zheng)弦波(bo)(bo);第(di)四正(zheng)弦波(bo)(bo)經輸(shu)出(chu)效率(lv)(lv)優化(hua)(hua)(hua)(hua)電(dian)(dian)路(lu)(lu)后(hou)形(xing)成優化(hua)(hua)(hua)(hua)后(hou)的(de)第(di)四正(zheng)弦波(bo)(bo);其中,所(suo)(suo)述(shu)射(she)(she)頻(pin)輸(shu)出(chu)匹(pi)配(pei)電(dian)(dian)路(lu)(lu)還用(yong)于對兩(liang)個優化(hua)(hua)(hua)(hua)后(hou)的(de)第(di)四正(zheng)弦波(bo)(bo)進行合路(lu)(lu)輸(shu)出(chu)第(di)五正(zheng)弦波(bo)(bo),作為射(she)(she)頻(pin)輸(shu)出(chu)信號,所(suo)(suo)述(shu)第(di)五正(zheng)弦波(bo)(bo)為第(di)一正(zheng)弦波(bo)(bo)放大后(hou)的(de)波(bo)(bo)形(xing)。
6、本申請實施例由于采用以(yi)上(shang)技(ji)術(shu)(shu)方案,具有以(yi)下技(ji)術(shu)(shu)效果:
7、本申請實(shi)施(shi)例(li)的(de)(de)(de)射(she)頻放(fang)(fang)大器(qi)電(dian)路,采用的(de)(de)(de)是推挽(wan)(wan)原(yuan)理,即(ji)將推挽(wan)(wan)原(yuan)理應(ying)(ying)(ying)用到(dao)射(she)頻放(fang)(fang)大器(qi)電(dian)路中,第(di)(di)(di)(di)一(yi)場(chang)效(xiao)(xiao)(xiao)應(ying)(ying)(ying)管(guan)(guan)q21和第(di)(di)(di)(di)二場(chang)效(xiao)(xiao)(xiao)應(ying)(ying)(ying)管(guan)(guan)q22分時進行工(gong)作(zuo),得到(dao)兩(liang)(liang)個(ge)(ge)相(xiang)位差(cha)為(wei)180度的(de)(de)(de)第(di)(di)(di)(di)四正(zheng)(zheng)弦(xian)(xian)(xian)波(bo)(bo)。射(she)頻輸(shu)(shu)出匹配(pei)電(dian)路對(dui)兩(liang)(liang)個(ge)(ge)第(di)(di)(di)(di)四正(zheng)(zheng)弦(xian)(xian)(xian)波(bo)(bo)進行優(you)化(hua)(hua)、合路輸(shu)(shu)出第(di)(di)(di)(di)五正(zheng)(zheng)弦(xian)(xian)(xian)波(bo)(bo),作(zuo)為(wei)射(she)頻輸(shu)(shu)出信號,所述第(di)(di)(di)(di)五正(zheng)(zheng)弦(xian)(xian)(xian)波(bo)(bo)為(wei)第(di)(di)(di)(di)一(yi)正(zheng)(zheng)弦(xian)(xian)(xian)波(bo)(bo)放(fang)(fang)大后的(de)(de)(de)波(bo)(bo)形。與背景(jing)技(ji)術的(de)(de)(de)射(she)頻輸(shu)(shu)入信號僅通過一(yi)個(ge)(ge)sic場(chang)效(xiao)(xiao)(xiao)應(ying)(ying)(ying)管(guan)(guan)m1放(fang)(fang)大相(xiang)比(bi),本申請實(shi)施(shi)例(li)的(de)(de)(de)射(she)頻放(fang)(fang)大器(qi)電(dian)路的(de)(de)(de)功(gong)率(lv)(lv)更大。輸(shu)(shu)出優(you)化(hua)(hua)用電(dian)感l31和輸(shu)(shu)出優(you)化(hua)(hua)用可調電(dian)容c30形成的(de)(de)(de)輸(shu)(shu)出側效(xiao)(xiao)(xiao)率(lv)(lv)優(you)化(hua)(hua)電(dian)路能夠有(you)(you)效(xiao)(xiao)(xiao)的(de)(de)(de)抑(yi)(yi)制(zhi)諧波(bo)(bo)。諧波(bo)(bo)抑(yi)(yi)制(zhi)對(dui)場(chang)效(xiao)(xiao)(xiao)應(ying)(ying)(ying)管(guan)(guan)(第(di)(di)(di)(di)一(yi)場(chang)效(xiao)(xiao)(xiao)應(ying)(ying)(ying)管(guan)(guan)q21和第(di)(di)(di)(di)二場(chang)效(xiao)(xiao)(xiao)應(ying)(ying)(ying)管(guan)(guan)q22)的(de)(de)(de)有(you)(you)影響。輸(shu)(shu)出側效(xiao)(xiao)(xiao)率(lv)(lv)優(you)化(hua)(hua)電(dian)路用于對(dui)輸(shu)(shu)入的(de)(de)(de)兩(liang)(liang)個(ge)(ge)第(di)(di)(di)(di)四正(zheng)(zheng)弦(xian)(xian)(xian)波(bo)(bo)抑(yi)(yi)制(zhi)諧波(bo)(bo),輸(shu)(shu)出優(you)化(hua)(hua)后的(de)(de)(de)第(di)(di)(di)(di)四正(zheng)(zheng)弦(xian)(xian)(xian)波(bo)(bo),使得場(chang)效(xiao)(xiao)(xiao)應(ying)(ying)(ying)管(guan)(guan)(第(di)(di)(di)(di)一(yi)場(chang)效(xiao)(xiao)(xiao)應(ying)(ying)(ying)管(guan)(guan)q21和第(di)(di)(di)(di)二場(chang)效(xiao)(xiao)(xiao)應(ying)(ying)(ying)管(guan)(guan)q22)的(de)(de)(de)實(shi)際(ji)工(gong)作(zuo)性能大大改善,進而提高射(she)頻放(fang)(fang)大器(qi)電(dian)路的(de)(de)(de)實(shi)際(ji)工(gong)作(zuo)性能。
1.一種射頻放大器電路,其特征在(zai)于,包括:
2.根(gen)據權利要(yao)求(qiu)1所述的射頻放(fang)大器電路,其特征在于,第一場效(xiao)應管q21和(he)第二場效(xiao)應管q22分別為(wei)sic襯底的場效(xiao)應管。
3.根據權利要求2所述的射頻(pin)放大(da)器電(dian)路,其特征在于,所述射頻(pin)輸(shu)出(chu)匹配電(dian)路還(huan)包括:
4.根據(ju)權利要求3所(suo)述(shu)(shu)的射頻(pin)放大器電(dian)(dian)路(lu),其特(te)征在于,所(suo)述(shu)(shu)射頻(pin)輸出(chu)(chu)匹配電(dian)(dian)路(lu)還包括輸出(chu)(chu)隔直(zhi)第(di)五電(dian)(dian)容c35和(he)輸出(chu)(chu)隔直(zhi)第(di)六(liu)電(dian)(dian)容c36;所(suo)述(shu)(shu)輸出(chu)(chu)側(ce)阻抗調整(zheng)電(dian)(dian)路(lu)包括輸出(chu)(chu)側(ce)第(di)一(yi)同(tong)軸(zhou)線巴倫x31和(he)輸出(chu)(chu)側(ce)第(di)二(er)同(tong)軸(zhou)線巴倫x32;
5.根據權利要求4所(suo)述的(de)(de)射頻放大器電路,其特征在于,輸出隔(ge)直(zhi)第(di)(di)五電容(rong)c35的(de)(de)輸出端(duan)(duan)連(lian)接輸出側第(di)(di)三同軸線(xian)巴倫x33的(de)(de)一(yi)個輸入端(duan)(duan),輸出隔(ge)直(zhi)第(di)(di)六電容(rong)c36的(de)(de)輸出端(duan)(duan)連(lian)接輸出側第(di)(di)三同軸線(xian)巴倫x33的(de)(de)另一(yi)個輸入端(duan)(duan);
6.根據權利要求5所(suo)述的射頻(pin)放大器電路,其(qi)特征(zheng)在于,射頻(pin)輸(shu)出(chu)匹(pi)配電路包括:
7.根據權利要求3所述的(de)射頻放大器電(dian)路,其特征在于(yu),所述射頻輸(shu)(shu)入(ru)匹配電(dian)路包括輸(shu)(shu)入(ru)側第三同(tong)軸線巴倫(lun)x13、輸(shu)(shu)入(ru)隔(ge)直(zhi)第一電(dian)容c11、輸(shu)(shu)入(ru)隔(ge)直(zhi)第二(er)電(dian)容c12;
8.根據權利要求(qiu)7所(suo)(suo)述(shu)的射(she)頻放大器電(dian)(dian)路(lu),其特征在于,所(suo)(suo)述(shu)射(she)頻輸(shu)入(ru)匹配電(dian)(dian)路(lu)包括輸(shu)入(ru)側(ce)(ce)阻(zu)抗調(diao)整(zheng)電(dian)(dian)路(lu),用于對第(di)(di)二正弦(xian)波經(jing)輸(shu)入(ru)隔直第(di)(di)一電(dian)(dian)容c11和輸(shu)入(ru)隔直第(di)(di)二電(dian)(dian)容c12后經(jing)過所(suo)(suo)述(shu)輸(shu)入(ru)側(ce)(ce)阻(zu)抗調(diao)整(zheng)電(dian)(dian)路(lu)進行阻(zu)抗調(diao)整(zheng),形成第(di)(di)三正弦(xian)波。
9.根據權利要求8所述的射頻放大器(qi)電路,其特征在于,所述輸入(ru)側阻抗調整電路包括輸入(ru)側第一同軸(zhou)線(xian)巴倫x11和輸入(ru)側第二同軸(zhou)線(xian)巴倫x12;
10.根據權利要求(qiu)3所述的射頻放(fang)大器電路,其特征在于,所述射頻輸入匹配電路包括(kuo):